OpenAI: gpt-oss-120b (free) — modelstop.top

openaimodel

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...

text reasoning agents free long-context

Best for

Complex ReasoningMath & LogicResearchAutonomous Agents

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Context Window

131K tokens ≈ 291 pages of text

Input Cost

Free

Output Cost

—

Latency p50

21ms

Pricing Details

Standard Pricing

Input (per 1M tokens)

$0.00

Output (per 1M tokens)

$0.00

Price history

9/9/2026$0.04 in / $0.17 out

9/9/2026$0.00 in / $0.00 out

9/8/2026$0.04 in / $0.17 out

9/8/2026$0.00 in / $0.00 out

9/7/2026$0.04 in / $0.17 out

Run it locally

Local run command

# Refer to provider docs:

Presumptive Specs:

Typical GPU

12–24 GB VRAM

System RAM

16+ GB

Disk

20+ GB free

Runtime

Docker / local runtime

Hallucination Score™ (est.)

Community reliability estimate · not official

—

Not yet rated

About this score: Community-estimated based on user reports and publicly available benchmark data (e.g. TruthfulQA). This is not an official score from the model provider. Scores may be inaccurate — always verify with the official leaderboard before making production decisions.

Price HistoryPro

Input & output cost per 1M tokens over time

Price history is a Pro feature

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Provider

openai

Usage & Examples

Learn how to use OpenAI: gpt-oss-120b (free)

✓Complex reasoning and analysis

✓Customer support automation

✓Content generation and editing

✓Code review and debugging

✓Research summarization

💡 Tip: Start with the sample prompts above to see how OpenAI: gpt-oss-120b (free) works best.

Community Prompts

Proven prompts shared by the community for this model

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