Developer Tools & APIs
Claude Opus 4.1 retires on 5 August 2026: migrate to Opus 4.8 now
The claude-opus-4-1-20250805 model ID stops working on 5 August 2026. Here's what to change and why Opus 4.8 is the right target.
Topic
Migration
12 posts about Migration from Simon Carter.
Developer Tools & APIs
OpenAI Assistants API is permanently removed on 26 August 2026: here's what you need to do
OpenAI's Assistants API is gone on 26 August 2026. This is a full architectural migration to the Responses API, not a quick endpoint swap.
Developer Tools & APIs
Anthropic is retiring the legacy Claude Workbench and three experimental prompt API endpoints on 17 August 2026
The legacy Workbench and three /v1/experimental/ prompt endpoints shut down 17 August 2026. Here's what to export and what replaces them.
Developer Tools & APIs
Imagen 4 endpoints shut down on 17 August 2026: and the migration is more than a model rename
Imagen 4 model endpoints hard-shut-down 17 August 2026. Migration means switching method, model name, and response parsing.
Developer Tools & APIs
Anthropic is retiring Claude Opus 4.1 on August 5, 2026 — here's what developers need to do
Anthropic has deprecated claude-opus-4-1-20250805 with a retirement date of August 5, 2026. Opus 4.8 is the recommended replacement.
Developer Tools & APIs
Claude Sonnet 4 and Opus 4 are gone from the API — here's what to do
As of June 15, 2026, claude-sonnet-4-20250514 and claude-opus-4-20250514 return errors. Migrate to Sonnet 4.6 and Opus 4.8.
Developer Tools & APIs
claude-mythos-preview Is Deprecated — But Its Replacement Is Currently Unavailable
Anthropic has formally deprecated claude-mythos-preview with a June 30 2026 retirement date, directing developers to migrate to claude-mythos-5 — which is currently suspended.
Developer Tools & APIs
Google is deprecating Veo 2 and Veo 3 on the Gemini API — here's what you need to do before June 30, 2026
Veo 2 and Veo 3 model IDs on the Gemini API are being shut down on June 30, 2026. Migrate to Veo 3.1 Preview or the Enterprise GA models now.
Developer Tools & APIs
Gemini Code Assist and Gemini CLI are shutting down for consumer tiers on June 18, 2026 — here's how to migrate to Antigravity
Google is retiring Gemini Code Assist IDE extensions and Gemini CLI for free, Pro, and Ultra users on June 18, 2026. Migration to Antigravity CLI is required.
Developer Tools & APIs
Codex now imports your Claude Code setup — and it's built right into onboarding
OpenAI's latest Codex update adds guided migration from Claude Code and Claude Cowork, plus a revamped plugins screen with filters and keyboard navigation.
Developer Tools & APIs
Google Extends Gemini 2.5 Retirement on Vertex AI to October 2026
Google has pushed the Vertex AI retirement date for Gemini 2.5 Pro, Flash, and Flash-Lite to October 16, 2026, giving developers more time to migrate to Gemini 3.x.
Developer Tools & APIs
Gemini Interactions API: The June 8 Hard Removal Is Done — Here's What Breaks and How to Fix It
The legacy Gemini Interactions API outputs schema was permanently removed on June 8, 2026. Here's what changed, what's broken, and how to migrate.