OpenAI: gpt-oss-20b (batch)
8.7 / 10
131.1K context
Proprietary
About this model
gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...
Benchmark Scores
IFEval
65.1
AIME-2024
96.0
AIME-2025
98.7
Technical Specs
- Architecture: text->text
- Context Window: 131,072 tokens
- Input Modalities: text
Hardware Requirements
- API-only (no local hardware needed)
Pricing
| Input | Output | Currency |
|---|---|---|
| 0.05 / 1M tokens | 0.2 / 1M tokens | USD |