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0c5f64fcba
Replaces `gpt-5-mini` and `gpt-5` with `gpt-5.4-nano` and `gpt-5.3-codex` respectively. Clients with stale model IDs in IndexedDB will gracefully reset to the new defaults. While we can technically keep the existing models around, we've [opted](https://supabase.slack.com/archives/C051L8U2EJF/p1774283070517609?thread_ts=1773771991.871669&cid=C051L8U2EJF) to replace them w/ the newer models for simplicity. Basic completion endpoints use `'none'` reasoning level for optimal speed. Rationale for these models is they provide they best balance of intelligence/speed and cost. GPT-5.4-nano is less expensive (0.8x price), faster, and smarter than GPT-5-mini. GPT-5.4-mini would be even smarter but is 3x the price. GPT-5.3-Codex is ~1.4x the price of GPT-5, while GPT-5.4 would be 2x price, but 5.3-Codex is still a big intelligence boost from GPT-5. See [eval comparison](https://www.braintrust.dev/app/supabase.io/p/Assistant/experiments/mattrossman%2Fai-509-v2-upgrade-assistant-models-beyond-gpt-5-family-1774468619?c=master-1774458837&diff=between_experiments), scores are relatively stable and conciseness naturally improves on gpt-5.4-nano. Other change: - Fixed an eval test case to clarify that https://supabase.help is also a correct URL for submitting support ticket, which was unfairly scored as incorrect [here](https://www.braintrust.dev/app/supabase.io/p/Assistant/trace?object_type=experiment&object_id=5244cccd-23b2-4f79-9dd2-287f1b40ebad&r=bac9b903-8bde-4c21-99dd-e0ed141c4f9e&s=f248fbf5-75bf-4aab-be0a-87a4298e6d11) I sanity checked the Assistant, natural language filters, and SQL Editor completions on staging preview. References: - https://openai.com/index/introducing-gpt-5-4-mini-and-nano/ - https://openai.com/index/introducing-gpt-5-3-codex/ - https://developers.openai.com/api/docs/pricing Closes AI-509