fix: add Anthropic models claude-sonnet-4-0 and claude-opus-4-0

[github-actions]

fix: add Anthropic models claude-sonnet-4-0 and claude-opus-4-0

Closes #452

Source issue: #452

Summary

Field	Value
Provider	anthropic
Primary model	claude-opus-4-1
Changed models	claude-sonnet-4-0 claude-opus-4-0
Added models	claude-sonnet-4-0 claude-opus-4-0
Updated models	None
Verification sources	1

Verified metadata

Model	Providers	Format	Flavor	Token limits	Pricing	Lifecycle
claude-sonnet-4-0	anthropic	anthropic	chat	input=1000000, output=64000	in/out=3/15 per 1M; cache read=0.3 per 1M; cache write=3.75 per 1M	date=2026-05-14; multimodal=true; reasoning=true
claude-opus-4-0	anthropic	anthropic	chat	input=200000, output=32000	in/out=15/75 per 1M; cache read=1.5 per 1M; cache write=18.75 per 1M	date=2026-05-14; multimodal=true; reasoning=true

sync_models cross-check

sync_models cross-check found differences. Official provider verification was used for the applied values, and sync_models discrepancies are listed below for review.

Model	sync_models source models	Status	Details
claude-sonnet-4-0	None	missing in sync_models	No translated sync_models reference entry matched this model name.
claude-opus-4-0	None	missing in sync_models	No translated sync_models reference entry matched this model name.

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Project	Deployment	Actions	Updated (UTC)
ai-proxy	Ready	Preview, Comment	Apr 23, 2026 10:30am

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[chatgpt-codex-connector]

Set accurate deprecation date for Claude 4.0 aliases

deprecation_date drives when models become hidden/treated as deprecated in markModelsPastDeprecationDate (packages/proxy/schema/models.ts), but this value is set to 2026-05-14 for the newly added Claude 4.0 alias. Anthropic has already marked Claude 4.0 as deprecated (with retirement later), so this date keeps the alias surfaced as active for weeks after deprecation, which can route users toward models that are already in sunset. Please align this field with the provider’s current lifecycle date (and apply the same correction to the matching Opus alias entry).

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