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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-4 (older v0314)
⚡OpenAI: GPT-4 (older v0314) is 145ms faster than gpt-oss-20b
📈OpenAI: GPT-4 (older v0314) scores 1270.0 pts higher on benchmarks
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
| Spec | gpt-oss-20b | OpenAI: GPT-4 (older v0314) |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | $30.00 |
| Output price / 1M tokens | — | $60.00 |
| Context window | 128k tokens | 8k tokens |
| Latency (p50) | 145ms | — |
| Best benchmark score | — | 1270.0 |
| 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.
GPT-4-0314 is the first version of GPT-4 released, with a context length of 8,192 tokens, and was supported until June 14. Training data: up to Sep 2021.
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