gpt-oss:20b
by Ollama Cloud · family gpt-oss · listed Aug 2025RTW
Open-weight GPT model for self-hosted reasoning and instruction-following workloads
Current rates USD per 1M tokens
Input—
Output—
Cache read—
Cache write—
Against the market
On the record
- Model id
gpt-oss:20b- Context window
- 131K tokens
- Max output
- 33K tokens
- Input modalities
- text
- Output modalities
- text
- Reasoning
- yes
- Tool calls
- yes
- Open weights
- yes
- Knowledge cutoff
- —
- Released
- 2025-08-05
- Last updated
- 2026-01-19
- Provider docs
- docs.ollama.com/cloud