#gpt-5-6

GPT-5.6 Luna fell 80% and Terra 20% on July 30, Sonnet 5's promo ends August 31, and OpenRouter list prices quietly mix standard with batch rates.

One week repriced the cheap end of the model market. A surface-labelled table of what Luna, Qwen3.7 Flash and DeepSeek V4 Flash now cost, and what that buys.

OpenAI confirmed GPT-5.6 Sol has deleted user files in Full-Access mode. The fix is not a smarter model but the permission tier you run the agent in.

OpenAI's GPT-5.6 caching overhaul, plus Anthropic and DeepSeek tiers, reshapes agent cost math. How to design cache-first, model-homogeneous agents.

Anthropic extended Fable 5 access and Claude Code limits through July 19. Updated: the July 18 announcement resolved the cliff — here is how terms landed.

OpenAI aimed a special 64-subagent configuration at a decades-old math conjecture and claims a proof in under an hour. What that means for orchestration.

GPT-5.6 became the preferred model across Word, Excel, PowerPoint, Chat, and Cowork the same day as GA. A team playbook for Microsoft 365 Copilot.

ChatGPT Work and Codex share one GPT-5.6 usage pool, per OpenAI's own docs. Access splits by plan and surface - plus the CLI update you need.

GPT-5.6 GA, Grok 4.5, and Fable 5 all moved this week. A dated marketing routing matrix mapping model to task and cost-per-finished-task, not brand loyalty.

OpenAI launched ChatGPT Work on July 9: a GPT-5.6 agent that turns a goal into finished sheets, slides, docs and sites, with Codex merged into one desktop app.

OpenAI's GPT-5.6 goes GA July 9 across ChatGPT, Codex and the API: official model IDs, ultra multi-agent mode, Programmatic Tool Calling, and access by plan.

A dual-model content review pairs one model as drafter and a second frontier model as adversarial critic, with human sign-off — grounded in 2026 bias research.

OpenAI previews GPT-5.6 as three tiers — flagship Sol, balanced Terra, high-volume Luna — with new multi-agent reasoning, pricing, and a gated rollout.