gpt5mcp

# GPT5 Tool Model Inventory (as of 2025-12-16) ## gpt5_codex tool - File: src/tools/built-in/gpt5-codex.ts - Default model: `gpt-5.2-codex-max` (parameter default at line ~247). - Model options exposed via docs/parameter description (line ~53): - `gpt-5.2-codex-max` (default) - `gpt-5.2` - `gpt-5.1-codex` - `gpt-5.1-codex-mini` - `o3` - `o4-mini` - Implementation accepts any string for `model` (no runtime validation beyond optional presence), but the above list is the intended set surfaced in the description and help text. ## gpt5_agent tool - File: src/tools/built-in/gpt5-agent.ts - Default model: `gpt-5.1` (parameter default at line ~113 and runtime default at line ~582). - Allowed models (enum-enforced in parameter schema at line ~113): - `gpt-5` - `gpt-5.1` - `gpt-5.2` (default) - `gpt-5-mini` - `gpt-5-nano` - `gpt-5.1-chat-latest` (non-reasoning; verbosity forced to `medium`). - The tool sends the selected `model` directly to the Responses API; only the enum limits the allowed values. ## Notes - No additional model lists or overrides are defined elsewhere in `src/tools`. - Both tools pass the `model` string straight through to their respective backends (Codex CLI or Responses API); changing available models requires updating the parameter descriptions/enums.