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gpt-oss-20b: price, performance and context
Open gpt-oss-20b by OpenAI costs $0.018 per 1M input and $0.09 per 1M output tokens, handles up to 131.1K tokens in one request (≈ 390 pages of text) and scores 10 points on the AgentKernel performance index, rank 153 of 212.
Privacy: zero data retention with 9 providers, including in the EU. Availability over the last 24 h: 100%.
Open in the interactive comparisonKey facts
- Licence
- Open weights: free to download and self-host
- Input / 1M tokens
- $0.018
- Output / 1M tokens
- $0.09
- Context window
- 131.1K tokens
- Max. output
- 32.8K tokens
- Performance index
- 10 points · rank 153 of 212
- Coding index
- n/a
- Agentic index
- n/a
- Cost at your usage
- $0.041 / month
- Knowledge cutoff
- Jun 2024
- In the catalog since
- Aug 05, 2025
- Capabilities
- Reasoning, Tool Calling
What do you get for $10.00?
Rules of thumb from the cost calculator, base rates without caching or taxes.
| Task | Cost per task | For $10.00 |
|---|---|---|
| Chat repliesA question with a short history, a detailed answer | $0.00 | 198,000 |
| Email draftsBullet points in, a finished email out | $0.00 | 247,000 |
| Document summariesRead 10 pages, write a one-page summary | $0.00 | 96,000 |
| Code reviewsReview and comment on 500 lines of code | $0.00 | 53,000 |
| Book analysesAnalyse a 300-page book in one go | $0.002 | 5,100 |
Cheaper with similar performance
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|---|---|---|---|
| Ling 3.1 FlashinclusionAI | Proprietary | 41.1 | $0.00 |
| Ling 3.0 Flash VLinclusionAI | Open | 24.6 | $0.036 |
| Ling 3.0 FlashinclusionAI | Open | 20.1 | $0.037 |
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|---|---|---|---|
| GPT-4.1 MiniOpenAI | Proprietary | 10.2 | $0.80 |
| Gemini 2.5 Flash LiteGoogle | Proprietary | 10.4 | $0.20 |
| Trinity Large ThinkingArcee-ai | Open | 10.8 | $0.45 |