gpt-oss-20b
by openaiOpenAI’s 21B-parameter open-weight Mixture-of-Experts (MoE) model, released under the Apache 2.0 license. Features 3.6B active parameters per forward pass, optimized for low-latency inference and deployability on consumer or single-GPU hardware. Trained in OpenAI’s Harmony response format, it supports reasoning level configuration, fine-tuning, and agentic capabilities such as function calling and structured outputs.
Pricing
Pay-as-you-go rates for this model. More details can be found here.
Input Tokens (1M)
$0.02
Output Tokens (1M)
$0.10
Capabilities
Input Modalities
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File
Output Modalities
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Rate Limits
Requests per minute (RPM) and per day (RPD) by tier. More about tiers here
| Tier | RPM | RPD |
|---|---|---|
| Free | — | — |
| Tier 1 | 10 | — |
| Tier 2 | 15 | — |
| Tier 3 | 25 | — |
| Tier 4 | 50 | — |
Usage Analytics
Token usage across the last 30 active days