Model deprecations
96 models in the catalog have been superseded or carry an availability notice. Every entry names its replacements and the stated reason; legacy models keep working unless a notice says otherwise.
September 20268 models
Same-price upgrade: fewer factual errors, stronger instruction-following.
Same-price upgrade: fewer factual errors, stronger instruction-following.
Direct upgrade at the same price: stronger features-and-bugs work and clearer writing.
Stronger tracking across extended tasks and more concise execution at the same price.
Two newer snapshots at the same price, with stronger long-task tracking.
Gemini 3.8 Flash is stronger across software engineering and agentic tasks at half the price.
Across-the-board upgrade at the same price, with more concise plans and summaries.
August 20261 model
July 20262 models
Claude Opus 5 is the new flagship at the same price, with stronger reasoning and subagent coordination.
Stronger reasoning and a three-tier lineup at the same flagship price.
May 20261 model
April 202611 models
Stronger reasoning and reliability at the same tier.
Stronger agentic execution and long-context coherence at the same price.
February 20266 models
Major reasoning leap with the same Pro pricing.
Better on every benchmark at the same price.
January 20263 models
December 20254 models
October 20253 models
September 20252 models
July 20252 models
June 20251 model
May 20251 model
April 20259 models
Undated42 models
Frequently asked
What does legacy mean on idapt?
A legacy model has been superseded by a newer equivalent, usually at the same price from the same author. Legacy models are hidden by default in pickers and shown behind a toggle.
Can I still use a legacy model?
Yes. Legacy models keep working unless they carry a hard availability notice; only notice-flagged models stop accepting requests.
How do I move a chat to the successor?
Open the chat's model picker and select the successor. Message history stays; only new replies use the new model. Each legacy model's page names its replacements.
Where do the reasons come from?
Each supersession carries a hand-written note in the catalog stating why the successor is the better default, for example a lower price at the same coding score.