feat(xai): update model YAMLs [bot]

[models-bot]

Auto-generated by poc-agent for provider xai.

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Note

Low Risk
Metadata-only catalog change with equivalent pricing numbers; no runtime or auth logic touched.

Overview
Updates providers/xai/grok-3.yaml so grok-3 is no longer offered as an active model: status moves from active to retired, with isDeprecated: true and retirementDate: "2026-05-15", matching how other retired xAI entries are modeled.

Token cost fields are rewritten in scientific notation (e.g. 3e-6 instead of 0.000003); the numeric rates are unchanged.

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[github-actions]

/test-models

[harshiv-26]

Gateway test results

• Total: 1
• Passed: 0
• Failed: 0
• Validation failed: 0
• Errored: 0
• Skipped: 1
• Success rate: 0.0%

Provider	Model	Scenarios
xai	grok-3	skipped: skip-check

Skipped (1)

xai/grok-3 — skip-check (skipped)

Skip reason

deprecated or retired model

[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

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