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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-3.5-turbo is 158ms faster than gpt-oss-120b
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
gpt-3.5-turbo is 20% faster
| Spec | gpt-oss-120b | gpt-3.5-turbo |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | Free |
| Output price / 1M tokens | — | — |
| Context window | 128k tokens | 16k tokens |
| Latency (p50) | 945ms | 787ms |
| 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.
OpenAI's lightweight and fast GPT-3.5 Turbo — cost-effective for most applications.
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