🧩 Model Card: gpt-oss-20b

• Type: Text-to-Text
• Think: Low / Medium / High (reasoning effort)
• Base Model: openai/gpt-oss-20b
• Max Context Length: 128k tokens
• Default Context Length: 8192 tokens (change default)
• Set Context Length at Launch

▶️ Run with FastFlowLM in PowerShell:

flm run gpt-oss:20b

Default resoning effort for both CLI and Server Modes is Medium

Set reasoning effort (CLI):

# CLI
flm run gpt-oss:20b
/set r-eff high

📝 NOTE

• Memory Requirements
  ⚠️ Note: Running gpt-oss:20b may need a system with > 32 GB RAM. The model itself uses ~15.1 GB of memory in FLM, and there is an internal cap (~15.6 GB) from on NPU memory allocation enforced by AMD/Microsoft, which makes only about half of the total system RAM available to the NPU. On 32 GB machines, it sometimes works sometimes not, so we recommend more RAM for a smooth experience.

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