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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 100% cheaper than OpenAI: GPT-4o-mini
⚡gpt-oss-20b is 45ms faster than OpenAI: GPT-4o-mini
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
| Spec | gpt-oss-20b | OpenAI: GPT-4o-mini |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | $0.15 |
| Output price / 1M tokens | — | $0.60 |
| Context window | — | 128k tokens |
| Latency (p50) | — | 45ms |
| Best benchmark score | — | — |
| Open source | No | No |
gpt-oss-20b — available via AWS Bedrock (us-east-1).
GPT-4o mini is OpenAI's newest model after [GPT-4 Omni](/models/openai/gpt-4o), supporting both text and image inputs with text outputs. As their most advanced small model, it is many multiples more affordable...
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