GPT-5.6

Specifications

No specifications recorded yet.

Latest developments

Apple's Siri AI Can Be Swapped Out for Claude, ChatGPT, Code Shows MacRumors · 2 days ago · 9 Datasette 1.0a39 and 0.65.4 security releases Simon Willison’s Weblog · 6 days ago · 19

OpenAI’s GPT-6 Astra aces South Korea’s CSAT across all subjects The Korea Times · 1 week ago · 24 Advancing price-performance for developers with GPT‑5.6 in Kiro OpenAI · 3 weeks ago · 40 ChatGPT search now uses the site:operator at scale Simon Willison’s Weblog · 3 weeks ago · 12

OpenAI introduces ‘Ultrafast,’ a new mode that makes GPT-5.6 Sol work at 14x the speed TechCrunch · 1 month ago · 33

IBM partners with OpenAI to bolster enterprise AI push TechCrunch · 1 month ago · 7 The builder’s guide to GPT‑5.6 OpenAI · 1 month ago · 17

September 2026

◆ OpenAI released GPT-6 Astra, its flagship AI model, along with evaluation results, a system card, and related updates to how the model is benchmarked and priced Model release

• 15 Sep Apple's Siri AI Can Be Swapped Out for Claude, ChatGPT, Code Shows
• 11 Sep Datasette 1.0a39 and 0.65.4 security releases
• 8 Sep OpenAI’s GPT-6 Astra aces South Korea’s CSAT across all subjects

August 2026

◆ OpenAI previews an 'Ultrafast' API tier for GPT-5.6 Sol, targeting up to 14× faster responses Feature update

◆ Simon Willison releases LLM 0.32 with reasoning traces, server-side tools, and streaming events API Feature update

◆ Major tech companies implement AI token spending controls and shift focus to efficiency over consumption Policy change

◆ OpenAI releases improved GPT-5.6 models and expands free ChatGPT access with unlimited text chats Feature update

◆ OpenAI's Astra model solves ten long-standing open problems in mathematics and theoretical computer science Research publication

• 24 Aug Advancing price-performance for developers with GPT‑5.6 in Kiro
• 20 Aug ChatGPT search now uses the site:operator at scale
• 13 Aug OpenAI introduces ‘Ultrafast,’ a new mode that makes GPT-5.6 Sol work at 14x the speed
• 13 Aug IBM partners with OpenAI to bolster enterprise AI push
• 13 Aug The builder’s guide to GPT‑5.6
• 7 Aug OpenAI Updates GPT-5.6 with Improved Safety and Accuracy
• 4 Aug New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smarter logging
• 4 Aug OpenAI’s Astra just proved 10 long-standing math and science theorems. The tokens cost $2,000.
• 4 Aug Microsoft Tells Engineers ‘Tokenmaxxing Is Not What We Are Optimizing For’

July 2026

◆ Microsoft, Amazon, and OpenAI report strong AI-driven financial results with significant capital investments Benchmark result

◆ OpenAI releases GPT-5.6 model family with efficiency improvements and significant price reductions Model release

◆ Multiple AI model releases and regulatory developments across OpenAI, Anthropic, and competitors Other

◆ Moonshot AI released Kimi K3, an open-weight large language model Model release

◆ OpenAI releases GPT-Red, an automated red-teaming system for identifying vulnerabilities in language models Product launch

◆ OpenAI's Codex reaches 8 million users following GPT-5.6 launch, experiencing rapid growth and scaling challenges Product launch

◆ OpenAI releases GPT-5.6 family of models (Sol, Terra, Luna) with general availability on Amazon Bedrock Model release

◆ Microsoft replaces external AI models with internal alternatives in Office applications to reduce inference costs Feature update

◆ OpenAI releases GPT-5.6 model family with three tiers (Luna, Terra, Sol) and new multi-agent capabilities Model release

◆ xAI launches Grok 4.5, an Opus-class large language model developed in partnership with Cursor Model release

◆ OpenAI releases GPT-5.6 model family with improved efficiency and reasoning capabilities Model release

◆ OpenAI releases GPT-5.6 in multiple variants alongside frontier AI model releases from competitors Model release

◆ Developers discuss best practices and architectural patterns for safely integrating AI coding agents into software development workflows Other

• 31 Jul [AINews] GPT 5.6 price cut by 20%-80%: Cost of GPT 5.4 Intelligence dropped 13x in 4 months due to GPT 5.6 recursive self-optimization
• 30 Jul Chinese AI competitors may have forced OpenAI’s hand on pricing
• 30 Jul How GPT-5.6 fuses frontier intelligence with frontier efficiency
• 30 Jul OpenAI CFO Sarah Friar tells employees that annualized revenue in July topped all of Q2
• 30 Jul Advancing the price-performance frontier with GPT-5.6
• 29 Jul How enabling two settings tripled our scores on the ARC-AGI-3 benchmark
• 29 Jul GPT-5.6 kernel of truth: Sol can cut its own costs, says OpenAI
• 29 Jul How GPT-5.6 fuses frontier intelligence with frontier efficiency
• 27 Jul Microsoft is racing to make OpenAI optional
• 21 Jul LWiAI Podcast #252 - GPT 5.6, Grok 4.5, Nemotron-Labs-Diffusion, AI 2040
• 18 Jul Moonshot is Chinese But Its AI Models Are From Another Planet
• 18 Jul Controlling Reasoning Effort in LLMs
• 16 Jul OpenAI Details GPT-Red: An Internal Automated Red-Teaming Model That Beat Human Red-Teamers 84% To 13% On Prompt Injection
• 16 Jul Quoting Thibault Sottiaux
• 16 Jul OpenAI’s GPT-Red automates prompt injection testing to harden AI agents
• 15 Jul Meet GPT-Red: an LLM super-hacker OpenAI built to make its models safer
• 15 Jul OpenAI hits 8 million Codex users — what developers need to know
• 14 Jul How to use GPT-5.6
• 13 Jul Toyo brings AI-powered email and Slack triaging with meeting prep and follow-up management
• 13 Jul Microsoft routes some Excel and Outlook prompts to internal models to cut inference costs
• 12 Jul The Sequence Radar #893: Last Week in AI: GPT-5.6, Grok 4.5, Muse Spark 1.1 and the Post-Chatbot Stack
• 11 Jul [AINews] not much happened today
• 10 Jul GPT-5.6: Frontier intelligence that scales with your ambition
• 10 Jul [AINews] OpenAI launches GPT 5.6 Sol/Terra/Luna, Codex becomes ChatGPT superapp
• 10 Jul OpenAI's big launch — and bigger departure
• 9 Jul OpenAI GPT-5.6: AI Could Do Anything, Then It Met ARC-AGI-3
• 9 Jul Grok x Cursor
• 9 Jul GPT-5.6 is now the preferred model in Microsoft 365 Copilot
• 9 Jul GPT-5.6: Frontier intelligence that scales with your ambition
• 9 Jul GPT-5.6 Is Last in 5.x Line, GPT-6 Coming in About a Month
• 9 Jul OpenAI's GPT-5.6 Clears Commerce Department Testing, Sol/Terra/Luna Launch Thursday
• 7 Jul What The New 100x Agentic Engineer Looks Like In The Era Of Fable & GPT 5.6

June 2026

◆ Multiple AI labs release new model variants and agent capabilities Model release

◆ OpenAI releases GPT-5.6 with staggered rollout following Trump administration request for limited initial access Model release

• 30 Jun GPT-5.6 is here but...
• 28 Jun The Sequence Radar #885: Last Week in AI: Models, Games, and the Future of Evaluation
• 27 Jun The AI Industry as You Know It Died Today
• 26 Jun Trump Administration Asks OpenAI to Stagger AI Model Release
• 12 Jun Five things I learned from a conversation with Microsoft CEO Satya Nadella

Relationships

Products & technology

• OpenAI develops this model · 30 sources
• Microsoft deploys this model · 2 sources
• Derived from GPT-5.6 Sol · 1 source
• Derived from Luna · 1 source
• Derived from Terra · 1 source
• Derived from Sol · 1 source
• Integrated with Amazon · 1 source
• Integrated with Responses API · 1 source
• Microsoft 365 Copilot integrated with this model · 1 source
• GPT-5.6 Luna derived from this model · 1 source
• GPT-5.6 Terra derived from this model · 1 source
• GPT-5.6 Sol derived from this model · 1 source