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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-20b is 674ms faster than gpt-3.5-turbo-0125
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
gpt-oss-20b is 465% faster
| Spec | gpt-oss-20b | gpt-3.5-turbo-0125 |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | Free |
| Output price / 1M tokens | — | — |
| Context window | 128k tokens | — |
| Latency (p50) | 145ms | 819ms |
| 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-20b is for lower latency, and local or specialized use-cases.
This cost-effective large language model excels at conversational tasks, content generation, and general-purpose text processing, making it ideal for developers and businesses seeking a balance between capability and affordability for production applications.
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