OpenAI: gpt-oss-120b
This AI model, developed by OpenAI, is called gpt-oss-120b. It processes text input and can handle contexts of up to 131072 tokens. The model supports the use of tools and demonstrates reasoning capabilities. If you're looking for an AI that balances performance with cost, consider this option. With a blended benchmark score of 40.1 across three independent benchmarks, it offers decent results without breaking the bank. At $0.037 per million input tokens and $0.17 per million output tokens, its price point is relatively affordable.
Benchmark results
Independent, published benchmarks. Blended score 40.1 across 3 benchmarks, last refreshed 2026-09-10. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| Aider Polyglot | code editing across languages | 41.8 |
| AI Index | broad capability composite | 20.4 |
| EQ-Bench | emotional understanding in dialogue | 53.4 |
- Model ID
- openai/gpt-oss-120b
- Vendor
- openai
- Released
- August 2025
- Tokenizer
- GPT
- Input Modalities
- text
- Output Modalities
- text
- Max Output
- 117,964 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- text only
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $0.04/M input and $0.17/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | under $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.03 |
| A month of a busy support chatbot | 5M in / 2M out | $0.53 |
Price & spec history
Tracked daily by PicksByModel since 2026-07-17.
| Date | Input /M | Output /M | Context |
|---|---|---|---|
| 2026-08-23 | $0.04 | $0.17 | 131,072 |
| 2026-08-12 | $0.03 | $0.17 | 131,072 |
| 2026-07-17 | $0.04 | $0.17 | 131,072 |
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Quick answers
- How much does OpenAI: gpt-oss-120b cost?
- $0.04 per million input tokens and $0.17 per million output tokens.
- What is OpenAI: gpt-oss-120b's context window?
- 131,072 tokens, roughly 196 pages of text in a single request.
- Does OpenAI: gpt-oss-120b support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: gpt-oss-120b process images?
- No, it is text-only on the input side.