Category: AI Development Guides
-
Claude Fable 5.1 Thinking Block Error: Fix the 400 “Different Conversation” Error
Fix the Claude Fable 5.1 thinking block error: append-only history, prefix mismatch, drop_block, beta headers, fallbacks, and logging.
-
How to Configure Cursor With a Custom OpenAI-Compatible API
Last reviewed: August 30, 2026. API interfaces and product settings change; verify current official documentation before production deployment. A Cursor custom API base URL can connect supported editor workflows to an OpenAI-compatible gateway, but a saved key is not proof of full compatibility. Developers should validate the endpoint, model ID, streaming, tool behavior, and usage…
-
Can the OpenAI API Access Current Information? Web Search vs RAG
Learn how OpenAI API current information works with model knowledge cutoffs, Responses API web search, file search, RAG, citations, and freshness checks.
-
LLM Model Versioning: How to Prevent Silent Updates From Breaking Your AI App
Prevent silent LLM changes with pinned snapshots, resolved-model logs, regression contracts, production canaries, deprecation tracking, and rollback.