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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-3.5 Turbo (older v0613)
⚡OpenAI: GPT-3.5 Turbo (older v0613) is 930ms faster than gpt-oss-120b
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
OpenAI: GPT-3.5 Turbo (older v0613) is 6200% faster
| Spec | gpt-oss-120b | OpenAI: GPT-3.5 Turbo (older v0613) |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | $1.00 |
| Output price / 1M tokens | — | $2.00 |
| Context window | 128k tokens | 4k tokens |
| Latency (p50) | 945ms | 15ms |
| 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.
GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.
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