News
Release: GPT-6.1 Sol – everything on pricing, benchmarks and how it compares
OpenAI released GPT-6.1 Sol: $2 / $10 per million tokens, near-Astra coding performance, but behind Anthropic's models on the overall index.
GPT
OpenAI's GPT series — the Sol, Terra, and Luna lines from GPT-5.6, joined since September 2026 by the GPT-6 line Astra.
News
GPT-6 Astra: OpenAIs first model at the Critical cyber tier
OpenAI shipped GPT-6 Astra — the first model to hit the Critical tier of its Preparedness Framework. Almost nobody has tested it independently yet.
News
GPT-5.6 is here: OpenAI ships only after US government review
OpenAI released GPT-5.6 (Sol/Terra/Luna) — but only after a pre-release review by the US government. What that means for frontier models.
News
OpenAI launches Daybreak Blue: more room for defensive security
Since August 2026, Daybreak Blue gives vetted defenders access to Sol with fewer cyber refusals. It is not a new AI model.
News
OpenAI closes $122B round — largest private financing in history
OpenAI closed the round end of March at $852B valuation. Who got in, what Amazon, Nvidia and SoftBank pay, what it means.
News
OpenAI swaps the ChatGPT default model — GPT-5.5 Instant replaces 5.3
Since 5 May 2026, GPT-5.5 Instant is the new default model in ChatGPT. -52.5% hallucinations on law, medicine, finance — and fewer emojis.
Blog
GPT-6 Astra Found Questions My First Security Review Missed
I used GPT-6 Astra and Fable 5.1 as independent reviewers for RLS, API and tenant-isolation checks. The useful part was the structured cross-review.
Blog
Astra Blocked My Security Request — Now I'm Verified for Daybreak
First Astra blocked my cybersecurity request. The hint led me to Trusted Access, identity verification and into OpenAI's Daybreak program.
Blog
GPT-6.1 Sol's First Hard Test: A Clean Merge, Too Little Scope Discipline
Sol 6.1 resolves a merge with 12 conflicting files cleanly, Opus 5.5 reviews. Then it spends two hours fixing failures outside its task.
Blog
AI Recap July 2026: Two Anthropic Models, a Government Review and the Open-Weight Pressure
July 2026 in AI: Sonnet 5 and Opus 5 from Anthropic, GPT-5.6 after a US review, Kimi K3 as open weights, and new GEO controls in Search Console.
Blog
GPT-6.1 Sol: Faster, Smarter, More Reliable — My First Impression
I wired GPT-6.1 Sol into boostN right after release. Early tasks run reliably. My first take, with a comparison chart. Detailed tests still running.
From the encyclopedia
Comparing AI models — who builds what and how to choose LLM Model Families at a Glance Daybreak Blue: Security access to GPT-5.6 Sol explained GPT-6.1 Sol Release September 2026 - All the Info GPT-6 Astra Release September 2026 - All the Info GPT Luna — the fast GPT-5.6 entry tier GPT Sol — OpenAI's top-tier line GPT Terra — the balanced GPT-5.6 tier