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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-3.5 Turbo Instruct
⚡gpt-oss-20b is 17ms faster than OpenAI: GPT-3.5 Turbo Instruct
Price (lower is better), Speed/Latency (lower is better), Performance (higher is better)
| Spec | gpt-oss-20b | OpenAI: GPT-3.5 Turbo Instruct |
|---|---|---|
| Provider | openai | openai |
| Input price / 1M tokens | Free | $1.50 |
| Output price / 1M tokens | — | $2.00 |
| Context window | — | 4k tokens |
| Latency (p50) | — | 17ms |
| Best benchmark score | — | — |
| Open source | No | No |
gpt-oss-20b — available via AWS Bedrock (us-east-1).
This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021.
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