Mason Daugherty 673ce8c091 fix(xai): drop unsupported stop parameter (#38335) ...

`ChatXAI` currently forwards `stop` to xAI reasoning models, which xAI
rejects. This causes calls such as `ChatXAI(model="grok-3", stop=[...])`
and unprofiled reasoning aliases such as
`ChatXAI(model="grok-4-fast-reasoning", stop=[...])` to fail before the
model can respond.

This updates the xAI payload construction so unsupported `stop` values
are removed for reasoning models. The check uses generated model
profiles when available and keeps an explicit alias fallback for known
reasoning model names that may not be present in profile data, including
older Grok 3 aliases and Grok 4 reasoning aliases. Explicit
non-reasoning aliases continue to preserve `stop`.

The regression tests cover the reported Grok 3 path, a current profiled
reasoning model, the `grok-4-fast-reasoning` alias used by integration
tests, and a non-reasoning model that should continue to preserve
`stop`.

AI-assisted contribution: this PR includes changes authored with
AI-agent assistance.

2026-06-20 19:01:29 -04:00

..

integration_tests

test(xai): tolerate extra block types in web search and xfail v1 streaming tool calls (#37612)

2026-05-21 13:55:14 -05:00

unit_tests

fix(xai): drop unsupported stop parameter (#38335)

2026-06-20 19:01:29 -04:00

__init__.py

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