chore: remove deprecated models from the catalog

[github-actions]

Model deprecation audit

Each model below returned a definitive not-found / deprecated response from its provider (a single 404 / not-found is treated as authoritative). Account/region-scoped providers (bedrock, vertex, databricks) are surfaced for manual review, not auto-removed.

{
  "deprecations": [
    {
      "model": "devstral-small-2507",
      "provider": "mistral",
      "reason": "absent from list + probe not-found",
      "status": 400,
      "detail": "{\"object\":\"error\",\"message\":\"Invalid model: devstral-small-2507\",\"type\":\"invalid_model\",\"param\":null,\"code\":\"1500\",\"raw_status_code\":400}"
    },
    {
      "model": "mistral-large-2411",
      "provider": "mistral",
      "reason": "absent from list + probe not-found",
      "status": 400,
      "detail": "{\"object\":\"error\",\"message\":\"Invalid model: mistral-large-2411\",\"type\":\"invalid_model\",\"param\":null,\"code\":\"1500\",\"raw_status_code\":400}"
    },
    {
      "model": "pixtral-large-2411",
      "provider": "mistral",
      "reason": "absent from list + probe not-found",
      "status": 400,
      "detail": "{\"object\":\"error\",\"message\":\"Invalid model: pixtral-large-2411\",\"type\":\"invalid_model\",\"param\":null,\"code\":\"1500\",\"raw_status_code\":400}"
    },
    {
      "model": "pixtral-large-latest",
      "provider": "mistral",
      "reason": "absent from list + probe not-found",
      "status": 400,
      "detail": "{\"object\":\"error\",\"message\":\"Invalid model: pixtral-large-latest\",\"type\":\"invalid_model\",\"param\":null,\"code\":\"1500\",\"raw_status_code\":400}"
    }
  ],
  "reportOnly": [
    {
      "provider": "bedrock",
      "modelCount": 132
    },
    {
      "provider": "databricks",
      "modelCount": 32
    },
    {
      "provider": "fireworks",
      "modelCount": 265
    },
    {
      "provider": "vertex",
      "modelCount": 117
    }
  ],
  "skipped": [
    {
      "provider": "lepton",
      "reason": "no adapter"
    },
    {
      "provider": "replicate",
      "reason": "no adapter"
    }
  ]
}

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Project	Deployment	Actions	Updated (UTC)
ai-proxy	Ready	Preview, Comment	Jul 7, 2026 7:30am

[chatgpt-codex-connector]

💡 Codex Review

braintrust-proxy/packages/proxy/schema/model_list.json

Lines 4314 to 4316 in 5a438d7

	"max_input_tokens": 256000,
	"available_providers": [
	"mistral"

Preserve the Vertex fallback for Mistral Large 24.11

For callers that still use the canonical mistral-large-2411 id with a Vertex-backed secret, deleting this catalog entry also deletes the only fallback_models edge to publishers/mistralai/models/mistral-large-2411, even though that Vertex publisher entry is still left in the catalog. getModelEndpointTypes builds its fallback provider graph only from entries returned by getAvailableModels(), so after this deletion the canonical id no longer resolves to the remaining Vertex provider and becomes unknown instead of just dropping the dead Mistral provider.

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