
GPT-5.6 Is Live: Prompt Caching Billing Changes Explained
July 2026: GPT-5.6 gpt-5.6-sol / terra / luna on AIHubMix: 1.05M context, 1.25x cache writes, prompt_cache_key, explicit breakpoints, vs Claude caching.
Announcements, tutorials, model analysis, and product updates from AIHubMix.

July 2026: GPT-5.6 gpt-5.6-sol / terra / luna on AIHubMix: 1.05M context, 1.25x cache writes, prompt_cache_key, explicit breakpoints, vs Claude caching.

AIHubMix added ~30 models in July 2026, including claude-opus-5, GPT-5.6, kimi-k3 and qwen3.8-max-preview, plus media generation, 3D generation and MCP Server.

Free AI Models: The Ultimate Guide to Building with Zero-Cost AI in 2026 on AIHubMix

July 2026 Kimi K3 guide: reasoning_effort max, thinking history, dynamic tool loading, structured output, auto caching, partial prefix, and vision inputs.

This article covers two key changes to reasoning control in Claude Opus 4.7, along with complete usage instructions for both the AIHubmix native API and the Chat unified interface. See also: Anthropic official announcement and model change log.