Changelog
Notable changes to the Nexotao API and model catalog. Breaking changes and billing-affecting changes are called out explicitly.
2026-06-24 — Catalog trim: two models, deprecated ids on a 30-day grace window
We’ve trimmed the live model catalog to two models. If your code references any other model id, read the billing note below — it can affect what you’re charged during the grace window.
What changed
- The live catalog is now two chat models only:
claude-opus-4-8(Claude Opus 4.8)DeepSeek-V4-Pro(DeepSeek V4 Pro)
- Image generation and audio transcription are no longer available.
POST /v1/images/generationsandPOST /v1/audio/transcriptionsreturn400— there are no active image or transcription models in the catalog. - Deprecated chat ids still work during a grace window, then stop. A request
for a deprecated id is transparently routed to a live model during the grace
window. Deprecated ids are planned for removal on or around 2026-07-24,
after which they return
400 unknown model. We’ll announce the exact cutover.
Billing note — please read
During the grace window, a deprecated id is billed at the live model’s rate, not the old id’s rate. Several deprecated ids were cheaper than the model they now route to, so a request that used to bill at a lower rate will bill at the canonical (higher) rate.
This is balance-bounded — you are never billed for more than your balance covers, and a request that can’t be covered is rejected rather than overdrawing — but it is a real price change for those ids. To avoid surprises, update your code to call a live id directly now rather than waiting for the cutoff.
Deprecated id → live model
| Deprecated id | Routes to (and billed as) | Note |
|---|---|---|
claude-sonnet-4-6 | claude-opus-4-8 | premium rate vs. old id |
claude-haiku-4-5 | claude-opus-4-8 | premium rate; Claude Code background slot |
gpt-5-mini | DeepSeek-V4-Pro | premium rate vs. old id |
gpt-4.1-mini | DeepSeek-V4-Pro | premium rate vs. old id |
DeepSeek-V4-Flash | DeepSeek-V4-Pro | premium rate vs. old id |
Retired media models (no replacement): FLUX.2-pro, gpt-4o-transcribe,
gpt-4o-mini-transcribe, whisper.
What you should do
- Update your model id to
claude-opus-4-8orDeepSeek-V4-Pro. - Check your billing assumptions if you were using a deprecated cheaper id — you’re now billed at the live model’s rate.
- Migrate soon. Deprecated ids are planned for removal on or around
2026-07-24, after which they return
400.
Live rates are always available from GET /models and on the
Models & Pricing page. Questions? See the FAQ.