⏳ Coming Soon to the Graveyard

AI products with confirmed death dates. The walking dead of the AI industry — already announced, just counting down.

Claude Sonnet 4 & Opus 4

4d left

Anthropic's flagship Claude 4 generation. API calls to claude-sonnet-4-0 and claude-opus-4-0 will return errors after June 15.

Killed by: Anthropic Shutdown: 2026-06-15 Replacement: Claude Sonnet 4.5 / Opus 4.7 Source

OpenAI Fine-tuning (new orgs)

42d left

New organizations can no longer create fine-tuning jobs. Existing jobs will stop on July 23, with a second wave October 23.

Killed by: OpenAI Shutdown: 2026-07-23 Replacement: Prompt caching / system prompts Source

OpenAI Assistants API

76d left

Persistent AI agents with memory, tools, and file handling. Replaced by the Responses API. Developers face a full rewrite.

Killed by: OpenAI Shutdown: 2026-08-26 Replacement: Responses API Source

Sora API

105d left

While the Sora app died in April, the API endpoint survives until September. Then it's gone completely.

Killed by: OpenAI Shutdown: 2026-09-24 Replacement: None (ChatGPT image gen only) Source

Gemini 2.5 Pro / Flash / Flash Lite

127d left

Google's entire Gemini 2.5 family on Vertex AI will be retired no earlier than October 16, 2026.

Killed by: Google Shutdown: 2026-10-16 Replacement: Gemini 3.x series Source