Mason Daugherty f9fd7be695 feat(openrouter): add langchain-openrouter provider package (#35211) ...

Add a first-party `langchain-openrouter` partner package
(`ChatOpenRouter`) that wraps the official `openrouter` Python SDK,
providing native support for OpenRouter-specific features that
`ChatOpenAI` intentionally does not handle.

Also adds scope-clarifying docstrings to `ChatOpenAI` / `BaseChatOpenAI`
warning users away from using `base_url` overrides with third-party
providers.

---

Closes #31325
Closes #32967
Closes #32977
Closes #32981
Closes #33643
Closes #33757
Closes #34056
Closes #34797
Closes #34962

Supersedes #33902, #34867 (thank you @elonfeng and @okamototk for your
initial work on this!)

---

Bugs with upstream sdk:
- https://github.com/OpenRouterTeam/python-sdk/issues/38
- https://github.com/OpenRouterTeam/python-sdk/issues/51
- https://github.com/OpenRouterTeam/python-sdk/issues/52

2026-02-15 02:09:13 -05:00

..

_compile_integration_test.yml

chore(deps): bump actions/checkout from 5 to 6 (#34083)

2025-11-24 19:10:28 -05:00

_lint.yml

revert(infra): temp disable lockfile CI check (#34428)

2025-12-19 12:42:11 -06:00

_release.yml

chore(infra): re-enable tests on prior published packages on core release (#34881)

2026-01-25 20:36:40 -08:00

_test_pydantic.yml

chore(deps): bump actions/checkout from 5 to 6 (#34083)

2025-11-24 19:10:28 -05:00

_test.yml

chore(deps): bump actions/checkout from 5 to 6 (#34083)

2025-11-24 19:10:28 -05:00

auto-label-by-package.yml

chore(infra): delete prompty (#35044)

2026-02-06 10:38:27 -05:00

check_agents_sync.yml

chore(infra): synchronize AGENTS.md & CLAUDE.md (#34965)

2026-02-01 15:26:22 -08:00

check_core_versions.yml

chore(deps): bump actions/checkout from 5 to 6 (#34083)

2025-11-24 19:10:28 -05:00

check_diffs.yml

chore(deps): bump actions/checkout from 5 to 6 (#34083)

2025-11-24 19:10:28 -05:00

integration_tests.yml

chore(deps): bump aws-actions/configure-aws-credentials from 5 to 6 in the github-actions group (#35056)

2026-02-06 21:17:56 +00:00

pr_labeler_file.yml

fix(infra): remove edited from PR labeler triggers (#34760)

2026-01-14 22:28:52 -05:00

pr_labeler_title.yml

chore(infra): use different pr title labeler (#33318)

2025-10-06 16:58:52 -04:00

pr_lint.yml

feat(openrouter): add langchain-openrouter provider package (#35211)

2026-02-15 02:09:13 -05:00

tag-external-contributions.yml

chore(deps): bump actions/create-github-app-token from 1 to 2 (#34886)

2026-01-26 14:38:21 -08:00

v03_api_doc_build.yml

chore(deps): bump actions/checkout from 5 to 6 (#34083)

2025-11-24 19:10:28 -05:00