chore(xai): deactivate retired Grok models on 2026-05-15

[smakosh]

Summary

• xAI is retiring the following models from its API effective May 15, 2026 at 12:00pm PT. After that date, requests to these models will fail.
• Mark each affected xai provider entry with deactivatedAt: 2026-05-15 so the gateway stops routing to them at the cutoff.
• Models deactivated: grok-3, grok-4-0709, grok-code-fast-1, grok-4-fast-reasoning, grok-4-fast-non-reasoning, grok-4-1-fast-reasoning, grok-4-1-fast-non-reasoning, grok-imagine-image-pro.
• The unified grok-4-fast and grok-4-1-fast route entries also have their xAI providers (both reasoning and non-reasoning variants) marked deactivated.
• The azure-ai-foundry providers for grok-4-1-fast-reasoning / grok-4-1-fast-non-reasoning are unaffected and remain active.

Note on Veo: the screenshot references Veo 2 / Veo 3 retirement on 2026-06-30. The gateway only ships Veo 3.1 entries, and PR #2082 already migrated the Vertex modelName to the GA -001 IDs, so no changes are needed here.

Test plan

• Verify retired Grok models stop being routed via xAI after 2026-05-15
• Verify grok-4-1-fast-reasoning / grok-4-1-fast-non-reasoning still resolve via azure-ai-foundry after the cutoff
• Verify non-retired Grok models (grok-4, grok-4.3, grok-3-mini, etc.) continue to route normally

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Updated deactivation schedules for select XAI model providers, including image and vision-related capabilities. Changes take effect on 2026-05-15 and 2026-03-27.

[coderabbitai]

Walkthrough

Deactivation timestamps are added to multiple XAI model provider entries in the models configuration, primarily setting deactivatedAt to 2026-05-15 across various Grok model variants and vision models.

Changes

Model Deactivation Configuration

Layer / File(s)	Summary
Model Deactivation Dates packages/models/src/models/xai.ts	Deactivation timestamps added to ten model entries: Grok-3, grok-4-0709, grok-4-fast-reasoning, grok-4-fast-non-reasoning, grok-code-fast-1, grok-4-1-fast-reasoning, grok-4-1-fast-non-reasoning, and grok-imagine-image-pro all marked with deactivatedAt: new Date("2026-05-15").

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'chore(xai): deactivate retired Grok models on 2026-05-15' directly and clearly summarizes the main change: marking xAI Grok models with deactivatedAt timestamps for 2026-05-15.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/deactivate-retired-xai-models

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[coderabbitai]

🧹 Nitpick comments (1)

packages/models/src/models/xai.ts (1)

479-556: grok-4-fast will have zero active providers post-deactivation — confirm graceful error handling.

Unlike grok-4-1-fast, the grok-4-fast router has no azure-ai-foundry fallback. After May 15, all its providers are deactivated, so any request to this model ID will result in no routable provider. Verify that the gateway surfaces a clean user-facing error (e.g., "model unavailable" or "no active provider") rather than an internal routing failure for this and other single-provider models (grok-3, grok-4-fast-reasoning, grok-4-fast-non-reasoning) in the same situation.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@packages/models/src/models/xai.ts` around lines 479 - 556, grok-4-fast
currently lists only deactivated providers ("grok-4-fast-non-reasoning",
"grok-4-fast-reasoning") so after 2026-05-15 requests will find no active
provider; update the routing/gateway resolver that selects a provider for a
model ID (the code that inspects providers for a model like "grok-4-fast") to
detect the zero-active-provider case and return a clear user-facing error (e.g.,
"model unavailable" / "no active provider") or route to an explicit fallback if
desired; ensure the change handles other single-provider models (e.g., "grok-3",
"grok-4-fast-reasoning", "grok-4-fast-non-reasoning") and that the error is
surfaced as a user-level response rather than an internal routing exception.

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@packages/models/src/models/xai.ts`:
- Around line 479-556: grok-4-fast currently lists only deactivated providers
("grok-4-fast-non-reasoning", "grok-4-fast-reasoning") so after 2026-05-15
requests will find no active provider; update the routing/gateway resolver that
selects a provider for a model ID (the code that inspects providers for a model
like "grok-4-fast") to detect the zero-active-provider case and return a clear
user-facing error (e.g., "model unavailable" / "no active provider") or route to
an explicit fallback if desired; ensure the change handles other single-provider
models (e.g., "grok-3", "grok-4-fast-reasoning", "grok-4-fast-non-reasoning")
and that the error is surfaced as a user-level response rather than an internal
routing exception.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 2ed32de8-6e4b-46d8-ac1f-98b07099c902

📥 Commits

Reviewing files that changed from the base of the PR and between 3fdd36a and f923778.

📒 Files selected for processing (1)

• packages/models/src/models/xai.ts