← the radar · ✳ model tracker

ChatGPT-5.6

● live

OpenAISOTA scope

Live — Sol · Terra · Luna since Jul 9 · repriced Jul 30: Luna −80%, Terra −20%. On the board as live since 2026-07-09 — the watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.

Read the full ChatGPT-5.6 deep-dive → — the leaks, the launch story, the official word, all on one page.

Timeline

2026-08-06

Three ChatGPT leaks in five hours were one release note — and the line none of them quoted is the real changepost

Three separate leaks landed in five hours claiming three separate ChatGPT changes: an upgraded GPT-5.6 Sol for Plus and Pro, a new reasoning slider rolling out, and unlimited chats coming for free users. All three are real.

2026-08-04

OpenAI cut Luna 80% — Azure kept the old price, so Luna costs 5× more on Azure than directpost

OpenAI cut GPT-5.6 Luna by 80% on July 30. We covered it. What we did not check — and should have, because it is the number that actually lands on a bill — is whether the clouds passed it on.

2026-07-31

The $0.20 Luna headline is the long-context tier — we read the catalog and the base rate is $0.10confirmed

2026-07-30

OpenAI cuts GPT-5.6 Luna 80% and Terra 20%, three weeks after launchconfirmed

2026-07-09

ChatGPT-5.6 verified live — from the vendor's own announcement and catalog listingverified

On the bench index

LMArena: 1,617.1LiveBench: 81.1SimpleBench: 71.7LLM Stats: 54.4Vals AI: 63.7Artificial Analysis: 47AW Index: 70.7

full comparison table →

The official word

We alert on verified API behavior, never on announcements alone — but when OpenAI speaks, it's here: openai.com/news ↗

Where to use ChatGPT-5.6

43 providers list ChatGPT-5.6 in the models.dev catalog (as of 2026-09-24), under the model ids shown below.

OpenAIgpt-5.6 · gpt-5.6-luna · gpt-5.6-sol

Amazon Bedrockglobal.openai.gpt-5.6-luna · global.openai.gpt-5.6-sol · global.openai.gpt-5.6-terra

Azuregpt-5.6-luna · gpt-5.6-sol · gpt-5.6-terra

Azure Cognitive Servicesgpt-5.6-luna · gpt-5.6-sol · gpt-5.6-terra

OpenRouteropenai/gpt-5.6-luna · openai/gpt-5.6-luna-pro · openai/gpt-5.6-sol

Vercel AI Gatewayopenai/gpt-5.6-luna · openai/gpt-5.6-luna-fast · openai/gpt-5.6-sol

302.AIgpt-5.6-luna · gpt-5.6-luna-pro · gpt-5.6-sol

Abacusgpt-5.6-luna · gpt-5.6-sol · gpt-5.6-terra

AgentRoutergpt-5.6-sol

AI-ROUTERgpt-5.6-luna · gpt-5.6-sol · gpt-5.6-terra

AIHubMixgpt-5.6-luna · gpt-5.6-sol · gpt-5.6-terra

Bothubgpt-5.6-luna

Also listed by Cloudflare AI Gateway, Cortecs, CrossModel, Databricks, DevPass (LLM Gateway), DigitalOcean, Eden AI, GitHub Copilot, GitLab Duo, Impossibl, Infer by Flow7, Kenari, Kilo Gateway, LLM Gateway, Merge Gateway, NanoGPT, Neon, Ofox, OpenCode Go, OpenCode Zen, Opper, OrcaRouter, Pioneer, Requesty, routing.run, SAP AI Core, Snowflake Cortex, Venice AI, Vivgrid, Xpersona, ZenMux.

Listings cover the model family, so a provider may list a sibling tier under the same name. Check the id before you build on it.

ChatGPT-5.6: quick answers

Is ChatGPT-5.6 out?

Yes. ChatGPT-5.6 is live and has been since July 9, 2026.

When was ChatGPT-5.6 released?

July 9, 2026.

Who makes ChatGPT-5.6?

OpenAI. ArtificialWatch also tracks GPT-Live-1, GPT-Image-2.5, GPT-6 Astra, GPT-5.5, GPT-5.6 Sol Ultrafast, GPT-5.6 Zinc / Magnesium and o4 from OpenAI.

Where can I use ChatGPT-5.6?

43 providers list it in the models.dev catalog, including OpenAI, Amazon Bedrock, Azure, Azure Cognitive Services and OpenRouter. The exact model ids each one lists are on this page.

Head to head

ChatGPT-5.6 vs GPT-6 Astra ChatGPT-5.6 vs Claude Opus 5 ChatGPT-5.6 vs Kimi K3

More from OpenAI

GPT-Live-1live since 2026-09-10

GPT-Image-2.5live since 2026-09-08

GPT-6 Astralive since 2026-09-03

GPT-5.5live since 2026-04-24

GPT-5.6 Sol Ultrafastwatching

GPT-5.6 Zinc / Magnesiumwatching

o4watching

Keep watching ChatGPT-5.6.

Watch it free — email + Chrome push, no card. Paid tiers add instant SMS and the phone call. Also: the wire · the bench index · our track record