Back to models
openaimodel
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.
Best for
Complex ReasoningMath & LogicResearchAutonomous Agents
Context Window
128K tokens ≈ 284 pages of text
Input Cost
$0.20/1M
Output Cost
$0.30/1M
Latency p50
—
Pricing Details
Standard Pricing
Input (per 1M tokens)
$0.20
Output (per 1M tokens)
$0.30
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 History
Not enough historical data yet. Check back after the next pricing sync.
Provider
openai
Community Prompts
Proven prompts shared by the community for this model
Loading prompts…