GPT Opensources 20B
GPT Opensources 20B is an AI model published by OpenAI, released on 2025-08-06, for Reasoning model, with 21B parameters, and 128K context length, requiring about 42GB storage, with a 2516.00 score on CodeForces.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
Model basics
Open source & experience
Official resources
API details
| Type | Condition | Input | Output |
|---|---|---|---|
| Text | - | $0.070/ 1M tokens | $0.300/ 1M tokens |
| Type | Condition | Input | Output |
|---|---|---|---|
| Text | - | $0.035/ 1M tokens | $0.150/ 1M tokens |
| Type | TTL | Write | Read |
|---|---|---|---|
| Text | - | $0.070/ 1M tokens | $0.040/ 1M tokens |
| Text | - | $0.070/ 1M tokens Cache = write | — |
| Text | - | — | $0.040/ 1M tokens Cache = hit |
“—” means the modality is not billed in that direction, or the vendor has not published a price for it.
Benchmark Results
GPT OSS 20B currently shows benchmark results led by AIME 2024 (3 / 62, score 96), AIME2025 (14 / 107, score 98.70), MMLU (41 / 124, score 85.30). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.
General Knowledge
4 evaluationsGeneral Evaluation
4 evaluationsCoding and Software Engineer
3 evaluationsMath and Reasoning
3 evaluationsWriting and Creative Capabilities
1 evaluationsPublisher
Model Overview
GPT Opensources 20B is an AI model published by OpenAI, released on 2025-08-06, for Reasoning model, with 21B parameters, and 128K context length, requiring about 42GB storage, with a 2516.00 score on CodeForces.
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