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Side-by-side comparison of API pricing, context window, latency, and benchmark performance. Data refreshed daily from provider APIs and ModelStop's own latency probes.
💰gpt-oss-120b is 100% cheaper than OpenAI: GPT-4o (2024-08-06)
⚡OpenAI: GPT-4o (2024-08-06) is 897ms faster than gpt-oss-120b
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-4o (2024-08-06) is 1869% faster
| Spec | gpt-oss-120b | OpenAI: GPT-4o (2024-08-06) |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | $2.50 |
| Output price / 1M tokens | — | $10.00 |
| Context window | 128k tokens | 128k tokens |
| Latency (p50) | 945ms | 48ms |
| Best benchmark score | — | — |
| Open source | No | No |
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.
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...
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