feat: Support gpt-5.1-codex-max and xhigh reasoning #45
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Adds full support for the new `gpt-5.1-codex-max` model family, including: - 4 new model variants in `full-opencode.json` (low, medium, high, xhigh) - Support for `xhigh` reasoning effort in request transformer - Model normalization and mapping for max variants - Comprehensive tests and documentation updates
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numman-ali
requested changes
Nov 20, 2025
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Whoops - ignore comment @ben-vargas was meant to pop on other PR
Let's go with the other one, it covers everything you've added plus CLI tests and full documentation updates
Thanks as always !
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Summary
This PR adds full support for the new
gpt-5.1-codex-maxmodel family and thexhighreasoning effort level.Changes
gpt-5.1-codex-maxto model normalization and mapping.xhighreasoning effort (supported by the max model).config/full-opencode.jsonto include 4 new verified model variants:gpt-5.1-codex-max-lowgpt-5.1-codex-max-mediumgpt-5.1-codex-max-highgpt-5.1-codex-max-xhighverification
test/request-transformer.test.ts.npm testpasses (173 tests passed).