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AI Stack Change Radar

Official changes to the models, products and APIs your team depends on—normalized into clear deadlines and actions.

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6 verified changes

Anthropic Retirement Critical

Anthropic will retire Claude Opus 4.1 on August 5

Anthropic deprecated claude-opus-4-1-20250805 and set August 5, 2026 as its Claude API retirement date.

Who is affected?: Claude API customers whose applications still call the dated Opus 4.1 model ID.
Action required: Replace the model ID with claude-opus-4-8 and test prompts, tool calls, output quality and operating cost before retirement.
By what date?: Aug 5, 2026
Affected stack: claude-opus-4-1-20250805 on the Claude API
Access / region: This date applies to Anthropic-operated platforms. Bedrock and Google Cloud schedules may differ.
Recommended alternative: claude-opus-4-8

Google Retirement Critical

Google will shut down three Imagen 4 API models August 17

Google is deprecating three stable Imagen 4 API model IDs and lists August 17, 2026 as their shutdown date.

Who is affected?: Gemini API developers generating images with any of the three stable Imagen 4 model IDs.
Action required: Switch to gemini-3.1-flash-image and test image quality, safety handling, aspect ratios and cost before shutdown.
By what date?: Aug 17, 2026
Affected stack: imagen-4.0-generate-001, imagen-4.0-ultra-generate-001, imagen-4.0-fast-generate-001
Access / region: The change applies to the listed Gemini API model endpoints; no regional exception is documented.
Recommended alternative: gemini-3.1-flash-image

OpenAI Migration Deadline Critical

OpenAI Assistants API reaches its migration deadline August 26

OpenAI will remove the Assistants API on August 26, 2026, one year after notifying developers of its deprecation.

Who is affected?: Developers running production assistants on the deprecated Assistants API.
Action required: Complete migration to the Responses API and Conversations API, including tool and thread-state tests, before shutdown.
By what date?: Aug 26, 2026
Affected stack: Assistants API
Access / region: The API shutdown is platform-wide; the official schedule does not list regional exceptions.
Recommended alternative: Responses API and Conversations API

Google Retirement High

Google lists October 16 as Gemini 2.5 Pro’s earliest possible shutdown date

Google lists October 16, 2026 as the Gemini 2.5 Pro shutdown date and recommends gemini-3.1-pro-preview.

Who is affected?: Gemini API developers with applications pinned to the stable Gemini 2.5 Pro model.
Action required: Move workloads to gemini-3.1-pro-preview and validate preview-model suitability, behavior and capacity before cutover.
By what date?: Oct 16, 2026
Affected stack: gemini-2.5-pro
Access / region: The schedule is for the Gemini API. Google says exact shutdown timing will be communicated in advance.
Recommended alternative: gemini-3.1-pro-preview

OpenAI Retirement High

OpenAI Agent Builder is scheduled to shut down November 30

OpenAI deprecated Agent Builder on June 3 and scheduled the product to shut down on November 30, 2026. ChatKit remains available.

Who is affected?: Developers and teams with workflows built in OpenAI Agent Builder.
Action required: Inventory Agent Builder workflows and migrate them to the Agents SDK or ChatGPT Workspace Agents before shutdown.
By what date?: Nov 30, 2026
Affected stack: Agent Builder
Access / region: OpenAI describes a product-wide shutdown; no regional exception is listed.
Recommended alternative: Agents SDK or ChatGPT Workspace Agents

OpenAI Retirement High

Older OpenAI GPT Image models will leave the API December 1

OpenAI deprecated gpt-image-1-mini, gpt-image-1.5 and chatgpt-image-latest and will remove them from the API on December 1, 2026.

Who is affected?: API developers calling the listed GPT Image model IDs.
Action required: Change image-generation integrations to gpt-image-2 and regression-test output, latency and cost before the deadline.
By what date?: Dec 1, 2026
Affected stack: gpt-image-1-mini, gpt-image-1.5, chatgpt-image-latest
Access / region: The removal applies to the OpenAI API; the official notice lists no regional exception.
Recommended alternative: gpt-image-2

How verification works

Kingy monitors official vendor documentation, normalizes each material change, and holds incomplete or uncertain imports for editorial review. “Last verified” is the latest date a Kingy editor checked the source—not a claim that the vendor will never revise it.