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OpenAI is the company behind GPT-4o, o3, and ChatGPT — the world's most widely deployed AI models. API access via openai.com.
103
indexed models
156
total catalog
$0.000
cheapest model
3
free / open source
| Model | Input $/1M | Output $/1M | Context | |
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whisper-large-v3-turbo Whisper is a pre-trained model for automatic speech recognition (ASR) and speech translation. | — | — | — | |
whisper-tiny-en Whisper is a pre-trained model for automatic speech recognition (ASR) and speech translation. Trained on 680k hours of labelled data, Whisper models demonstrate a strong ability to generalize to many datasets and domains without the need for fine-tuning. This is the English-only version of the Whisper Tiny model which was trained on the task of speech recognition. | — | — | — | |
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whisper Whisper is a general-purpose speech recognition model. It is trained on a large dataset of diverse audio and is also a multitasking model that can perform multilingual speech recognition, speech translation, and language identification. |
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OpenAI: gpt-oss-safeguard-20b gpt-oss-safeguard-20b is a safety reasoning model from OpenAI built upon gpt-oss-20b. This open-weight, 21B-parameter Mixture-of-Experts (MoE) model offers lower latency for safety tasks like content classification, LLM filtering, and trust... | $0.075 | $0.300 | 131k |
OpenAI: GPT-6 Luna Pro GPT-6 Luna Pro is the same underlying model as [GPT-6 Luna](https://openrouter.ai/openai/gpt-6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more... | $0.100 | $0.500 | 1.05M |
OpenAI: GPT-6 Luna GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. It is suited for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic... | $0.100 | $0.500 | 1.05M |
OpenAI: GPT-4o-mini GPT-4o mini is OpenAI's newest model after [GPT-4 Omni](/models/openai/gpt-4o), supporting both text and image inputs with text outputs. As their most advanced small model, it is many multiples more affordable... | $0.150 | $0.600 | 128k |
OpenAI: GPT-4o-mini (2024-07-18) GPT-4o mini is OpenAI's newest model after [GPT-4 Omni](/models/openai/gpt-4o), supporting both text and image inputs with text outputs. As their most advanced small model, it is many multiples more affordable... | $0.150 | $0.600 | 128k |
OpenAI: GPT-5 Mini GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost.... | $0.250 | $2.000 | 400k |
OpenAI: GPT-3.5 Turbo GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021. | $0.500 | $1.500 | 16k |
OpenAI: GPT Audio Mini A cost-efficient version of GPT Audio. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Input is priced at $0.60 per million... | $0.600 | $2.400 | 128k |
OpenAI: GPT-6.1 Terra Pro GPT-6.1 Terra Pro is the same underlying model as [GPT-6.1 Terra](https://openrouter.ai/openai/gpt-6.1-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more... | $1.000 | $5.000 | 1.05M |
OpenAI: GPT-6.1 Terra GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. It is suited for everyday agentic, coding, and writing work, is particularly strong at understanding screenshots... | $1.000 | $5.000 | 1.05M |
OpenAI: GPT-3.5 Turbo (older v0613) GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021. | $1.000 | $2.000 | 4k |
OpenAI: o3 Mini OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. This model supports the `reasoning_effort` parameter, which can be set to... | $1.100 | $4.400 | 200k |
OpenAI: GPT-5 Codex GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks.... | $1.250 | $10.000 | 400k |
OpenAI: GPT-3.5 Turbo Instruct This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021. | $1.500 | $2.000 | 4k |
OpenAI: GPT-6.1 Sol Pro GPT-6.1 Sol Pro is the same underlying model as [GPT-6.1 Sol](https://openrouter.ai/openai/gpt-6.1-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more... | $2.000 | $10.000 | 1.05M |
OpenAI: GPT-6 Sol GPT-6 Sol is the cost-efficient high-end model in OpenAI's GPT-6 series, positioned below the flagship GPT-6 Astra and above the fast GPT-6 Luna tier. It is suited for demanding professional... | $2.000 | $10.000 | 1.05M |
OpenAI: GPT-6 Sol Pro GPT-6 Sol Pro is the same underlying model as [GPT-6 Sol](https://openrouter.ai/openai/gpt-6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more... | $2.000 | $10.000 | 1.05M |
OpenAI: GPT-6.1 Sol GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. It is suited for agentic coding, computer use, document-heavy professional... | $2.000 | $10.000 | 1.05M |
OpenAI: GPT-4o (2024-08-06) The 2024-08-06 version of GPT-4o offers improved performance in structured outputs, with the ability to supply a JSON schema in the respone_format. Read more [here](https://openai.com/index/introducing-structured-outputs-in-the-api/). GPT-4o ("o" for "omni") is... | $2.500 | $10.000 | 128k |
OpenAI: GPT-4o (2024-11-20) The 2024-11-20 version of GPT-4o offers a leveled-up creative writing ability with more natural, engaging, and tailored writing to improve relevance & readability. It’s also better at working with uploaded... | $2.500 | $10.000 | 128k |
OpenAI: GPT-4o Search Preview GPT-4o Search Previewis a specialized model for web search in Chat Completions. It is trained to understand and execute web search queries. | $2.500 | $10.000 | 128k |
OpenAI: GPT-4o Audio The gpt-4o-audio-preview model adds support for audio inputs as prompts. This enhancement allows the model to detect nuances within audio recordings and add depth to generated user experiences. Audio outputs... | $2.500 | $10.000 | 128k |
OpenAI: GPT-5 Image Mini GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by [GPT-5 Mini](https://openrouter.ai/openai/gpt-5-mini), with GPT Image 1 Mini for efficient image generation. This natively multimodal model features superior instruction following, text... | $2.500 | $2.000 | 400k |
OpenAI: GPT Audio The gpt-audio model is OpenAI's first generally available audio model. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Audio is priced... | $2.500 | $10.000 | 128k |
OpenAI: GPT-4o (2024-05-13) GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as... | $5.000 | $15.000 | 128k |
OpenAI: GPT-6 Astra GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon... | $10.000 | $50.000 | 1.05M |
OpenAI: GPT-6 Astra Pro GPT-6 Astra Pro is the same underlying model as [GPT-6 Astra](https://openrouter.ai/openai/gpt-6-astra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more... | $10.000 | $50.000 | 1.05M |
OpenAI: GPT-4 Turbo (older v1106) The latest GPT-4 Turbo model with vision capabilities. Vision requests can now use JSON mode and function calling. Training data: up to April 2023. | $10.000 | $30.000 | 128k |
OpenAI: GPT-4 Turbo Preview The preview GPT-4 model with improved instruction following, JSON mode, reproducible outputs, parallel function calling, and more. Training data: up to Dec 2023. **Note:** heavily rate limited by OpenAI while... | $10.000 | $30.000 | 128k |
OpenAI: GPT-5 Image [GPT-5](https://openrouter.ai/openai/gpt-5) Image combines OpenAI's GPT-5 model with state-of-the-art image generation capabilities. It offers major improvements in reasoning, code quality, and user experience while incorporating GPT Image 1's superior instruction following,... | $10.000 | $10.000 | 400k |
OpenAI: o1 The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason... | $15.000 | $60.000 | 200k |
OpenAI: GPT-5 Pro GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and... | $15.000 | $120.000 | 400k |
OpenAI: GPT-4 OpenAI's flagship model, GPT-4 is a large-scale multimodal language model capable of solving difficult problems with greater accuracy than previous models due to its broader general knowledge and advanced reasoning... | $30.000 | $60.000 | 8k |
OpenAI: GPT-4 (older v0314) GPT-4-0314 is the first version of GPT-4 released, with a context length of 8,192 tokens, and was supported until June 14. Training data: up to Sep 2021. | $30.000 | $60.000 | 8k |
OpenAI: o1-pro The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide... | $150.000 | $600.000 | 200k |
gpt-oss-20b OpenAI’s open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases – gpt-oss-20b is for lower latency, and local or specialized use-cases. | — | — | 128k |
gpt-oss-120b OpenAI’s open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases – gpt-oss-120b is for production, general purpose, high reasoning use-cases. | — | — | 128k |
GPT OSS Safeguard 120B GPT OSS Safeguard 120B — available via AWS Bedrock (us-east-1). | — | — | — |
GPT OSS Safeguard 20B GPT OSS Safeguard 20B — available via AWS Bedrock (us-east-1). | — | — | 131k |
gpt-oss-20b gpt-oss-20b — available via AWS Bedrock (us-east-1). | — | — | — |
gpt-4o-mini-transcribe-2025-03-20 This compact multimodal model excels at real-time speech transcription and audio processing tasks, making it ideal for developers building cost-effective voice applications, accessibility features, and audio-to-text solutions that require lower latency and reduced computational resources compared to full-scale models. | — | — | — |
gpt-3.5-turbo-16k This large-context language model excels at handling lengthy documents and complex tasks requiring extended reasoning, making it ideal for developers and businesses needing to process long conversations, summarize extensive texts, or work with substantial codebases within a single API call. | — | — | — |
gpt-5.2-chat-latest I don't have reliable information about a model called "gpt-5.2-chat-latest" as it doesn't appear to be a current or publicly documented OpenAI model, so I cannot provide an accurate description without risking misinformation. | — | — | — |
gpt-4o-mini-transcribe-2025-12-15 This lightweight, cost-efficient model excels at converting speech to text with high accuracy across multiple languages and audio formats, making it ideal for developers and organizations seeking to add transcription capabilities to applications without deploying larger models. | — | — | — |
gpt-5-search-api-2025-10-14 This advanced search-integrated language model excels at retrieving and synthesizing real-time information from the web, making it ideal for researchers, journalists, and professionals who need current, verified facts and comprehensive answers to complex questions. | — | — | — |
gpt-3.5-turbo-0125 This cost-effective large language model excels at conversational tasks, content generation, and general-purpose text processing, making it ideal for developers and businesses seeking a balance between capability and affordability for production applications. | — | — | — |
gpt-4o-mini-audio-preview-2024-12-17 This lightweight, multimodal model excels at processing text, images, and audio inputs with fast response times and lower costs, making it ideal for developers and organizations building real-time conversational applications, content analysis tools, and interactive voice assistants where efficiency and affordability are priorities. | — | — | — |
gpt-4o-audio-preview-2024-12-17 This multimodal model excels at processing and generating both text and audio, making it ideal for developers and applications requiring real-time voice interactions, transcription, audio analysis, and spoken responses without separate API calls. | — | — | — |
gpt-4o-mini-audio-preview This lightweight multimodal model excels at fast, cost-effective processing of text, images, and audio inputs, making it ideal for developers and organizations seeking to build real-time conversational AI applications and voice-enabled features with minimal latency and resource requirements. | — | — | — |
o1-2024-12-17 This advanced reasoning model excels at complex problem-solving, scientific analysis, coding challenges, and mathematical proofs, making it ideal for researchers, engineers, and professionals who need deep analytical capabilities for difficult tasks. | — | — | — |
gpt-4o-mini-tts This lightweight multimodal model excels at fast, cost-effective text processing and vision tasks while supporting real-time text-to-speech synthesis, making it ideal for developers building responsive applications, chatbots, and voice-enabled services on budget-conscious deployments. | — | — | — |
gpt-5-2025-08-07 I don't have reliable information about a model called "gpt-5-2025-08-07" as it doesn't appear to be a publicly released or documented OpenAI model as of my knowledge cutoff in April 2024. | — | — | — |
gpt-audio-2025-08-28 I don't have information about a model called "gpt-audio-2025-08-28" in my training data, as my knowledge was last updated in April 2024 and this appears to be a future or non-existent model designation. | — | — | — |
gpt-audio-mini-2025-10-06 This lightweight audio-processing model excels at real-time speech recognition, transcription, and audio understanding tasks, making it ideal for developers building cost-effective voice applications and accessibility features with minimal latency requirements. | — | — | — |
gpt-5.2-2025-12-11 I don't have reliable information about a model called "gpt-5.2-2025-12-11" as it doesn't appear to be an actual OpenAI model that exists or has been announced as of my last training data in April 2024. | — | — | — |
gpt-5.2-pro I don't have reliable information about a model called "gpt-5.2-pro" by OpenAI, as this model name doesn't match OpenAI's publicly announced models or naming conventions. I cannot write a factual description of a model I cannot verify exists. | — | — | — |
gpt-3.5-turbo-1106 This large language model excels at general-purpose text generation, conversation, and content creation tasks, making it suitable for developers, businesses, and individuals seeking a cost-effective and efficient AI assistant for customer service, writing, coding assistance, and information retrieval applications. | — | — | — |
gpt-4o-transcribe This audio transcription model excels at converting spoken content from various languages and acoustic environments into accurate text, making it ideal for researchers, journalists, content creators, and businesses needing reliable speech-to-text capabilities for podcasts, interviews, meetings, and multilingual audio processing. | — | — | — |
gpt-3.5-turbo OpenAI's lightweight and fast GPT-3.5 Turbo — cost-effective for most applications. | — | — | 16k |
gpt-image-1-mini This compact vision model excels at analyzing images and answering questions about visual content, making it ideal for developers and applications requiring efficient image understanding on budget-constrained deployments. | — | — | — |
gpt-5-chat-latest I don't have reliable information about a model called "gpt-5-chat-latest" by OpenAI. As of my last update in April 2024, OpenAI's latest publicly available model is GPT-4, and I cannot provide a factual description of a model I'm not certain exists or whose specifications I'm unfamiliar with. | — | — | — |
gpt-image-1 I don't have specific information about an OpenAI model called "gpt-image-1" in my training data, so I cannot provide a factually accurate description of it. | — | — | — |
gpt-4.1-nano-2025-04-14 I don't have reliable information about a model named "gpt-4.1-nano-2025-04-14" in my training data, so I cannot provide a factually accurate description of this specific model. | — | — | — |
gpt-oss-20b 20b open-weight language model from OpenAI | — | — | 131k |
gpt-oss-120b 120b open-weight language model from OpenAI | — | — | 131k |
gpt-5.4 OpenAI's most capable frontier model for complex professional work, coding, and multi-step reasoning. | — | — | — |
OpenAI: GPT-3.5 Turbo 16k This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up... | — | — | 16k |
OpenAI: GPT-4 Turbo The latest GPT-4 Turbo model with vision capabilities. Vision requests can now use JSON mode and function calling. Training data: up to December 2023. | — | — | 128k |
OpenAI: GPT-4o GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as... | — | — | 128k |
OpenAI: o3 Mini High OpenAI o3-mini-high is the same model as [o3-mini](/openai/o3-mini) with reasoning_effort set to high. o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and... | — | — | 200k |
OpenAI: GPT-4o-mini Search Preview GPT-4o mini Search Preview is a specialized model for web search in Chat Completions. It is trained to understand and execute web search queries. | — | — | 128k |
OpenAI: GPT-4.1 Nano For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million... | — | — | 1.047576M |
OpenAI: GPT-4.1 Mini GPT-4.1 Mini is a mid-sized model delivering performance competitive with GPT-4o at substantially lower latency and cost. It retains a 1 million token context window and scores 45.1% on hard... | — | — | 1.047576M |
OpenAI: GPT-4.1 GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and... | — | — | 1.047576M |
OpenAI: o4 Mini OpenAI o4-mini is a compact reasoning model in the o-series, optimized for fast, cost-efficient performance while retaining strong multimodal and agentic capabilities. It supports tool use and demonstrates competitive reasoning... | — | — | 200k |
OpenAI: o3 o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following.... | — | — | 200k |
OpenAI: o4 Mini High OpenAI o4-mini-high is the same model as [o4-mini](/openai/o4-mini) with reasoning_effort set to high. OpenAI o4-mini is a compact reasoning model in the o-series, optimized for fast, cost-efficient performance while retaining... | — | — | 200k |
OpenAI: o3 Pro The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently... | — | — | 200k |
OpenAI: gpt-oss-20b (free) gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for... | — | — | 131k |
OpenAI: gpt-oss-120b (free) gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized... | — | — | 131k |
OpenAI: GPT-5 Nano GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger... | — | — | 400k |
OpenAI: GPT-5 GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy... | — | — | 400k |
OpenAI: GPT-5 Chat GPT-5 Chat is designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications. | — | — | 128k |
OpenAI: o4 Mini Deep Research o4-mini-deep-research is OpenAI's faster, more affordable deep research model—ideal for tackling complex, multi-step research tasks. Note: This model always uses the 'web_search' tool which adds additional cost. | — | — | 200k |
OpenAI: o3 Deep Research o3-deep-research is OpenAI's advanced model for deep research, designed to tackle complex, multi-step research tasks. Note: This model always uses the 'web_search' tool which adds additional cost. | — | — | 200k |
OpenAI: GPT-5.1-Codex-Mini GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex | — | — | 400k |
OpenAI: GPT-5.1-Codex GPT-5.1-Codex is a specialized version of GPT-5.1 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks.... | — | — | 400k |
OpenAI: GPT-5.1 Chat GPT-5.1 Chat (AKA Instant is the fast, lightweight member of the 5.1 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on... | — | — | 128k |
OpenAI: GPT-5.1 GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning... | — | — | 400k |
OpenAI: GPT-5.1-Codex-Max GPT-5.1-Codex-Max is OpenAI’s latest agentic coding model, designed for long-running, high-context software development tasks. It is based on an updated version of the 5.1 reasoning stack and trained on agentic... | — | — | 400k |
OpenAI: GPT-5.2 GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1. It uses adaptive reasoning to allocate computation dynamically, responding quickly... | — | — | 400k |
OpenAI: GPT-5.2 Pro GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro. It is optimized for complex tasks that require step-by-step reasoning,... | — | — | 400k |
OpenAI: GPT-5.2 Chat GPT-5.2 Chat (AKA Instant) is the fast, lightweight member of the 5.2 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on... | — | — | 128k |
OpenAI: GPT-5.2-Codex GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks.... | — | — | 400k |
OpenAI: GPT-5.3-Codex GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results... | — | — | 400k |
OpenAI: GPT-5.3 Chat GPT-5.3 Chat is an update to ChatGPT's most-used model that makes everyday conversations smoother, more useful, and more directly helpful. It delivers more accurate answers with better contextualization and significantly... | — | — | 128k |
OpenAI: GPT-5.4 GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for... | — | — | 1.05M |
OpenAI: GPT-5.4 Pro GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K... | — | — | 1.05M |
OpenAI: GPT-5.4 Mini GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads. It supports text and image inputs with strong performance across reasoning, coding,... | — | — | 400k |
OpenAI: GPT-5.4 Nano GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency... | — | — | 400k |