GPT OSS 20B High
Overview
GPT-OSS-20B High provides enhanced reasoning capabilities with high-effort thinking for complex problems. This variant offers deeper analysis and more thorough responses compared to the base model, making it ideal for challenging tasks that require extended reasoning. Achieves near-parity with OpenAI o4-mini on core reasoning benchmarks while running efficiently on a single 80 GB GPU, or on edge devices with just 16 GB of memory. Note: While referred to as '20b' for simplicity, it technically has 20.9B parameters.
GPT OSS 20B High was released on August 5, 2025. API access is available through OpenAI.
Performance
Timeline
Specifications
Benchmarks
GPT OSS 20B High Performance Across Datasets
Scores sourced from the model's scorecard, paper, or official blog posts
llm-stats.com - Fri Jan 09 2026Pricing
Pricing, performance, and capabilities for GPT OSS 20B High across different providers:
| Provider | Input ($/M) | Output ($/M) | Max Input | Max Output | Latency (s) | Throughput | Quantization | Input | Output |
|---|---|---|---|---|---|---|---|---|---|
OpenAI | $0.10 | $0.50 | 131.1K | 131.1K | 6.5 | 100.0 c/s | — | Text Image Audio Video | Text Image Audio Video |
API Access
API Access Coming Soon
API access for GPT OSS 20B High will be available soon through our gateway.
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FAQ
Common questions about GPT OSS 20B High