OpenAI launches GPT-4 Turbo and Assistants API
OpenAI released GPT-4 Turbo with 128K context, lower prices, improved tool calling and JSON mode alongside an Assistants API with persistent threads, retrieval and code execution.
TOWARD DOOM66confidence 98/100
Why it moved the index
Long context, lower cost, improved function calling and hosted code and retrieval tools materially expanded developers' ability to deploy persistent task-performing assistants.
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Assessment history
- R1Toward 66 · confidence 98
New November 2023 exact model and agent-development platform release.
12 Aug 2026