GPT-5.6 Sol

Specifications

No specifications recorded yet.

Latest developments

Encouraging deception in compaction summaries OpenAI · 5 hours ago · 3

ICYMI: What landed for AI builders in August 2026 Amazon Web Services · 1 week ago · 38 On the Navier–Stokes Millennium Prize Problem Simon Willison’s Weblog · 1 week ago · 18 How GPT-5.6 Sol helps run quantum computing experiments OpenAI · 1 week ago · 24

OpenAI’s new model costs 2.5x more per token — and developers are saving money anyway The New Stack · 1 week ago · 34

The Pelican comparison grid for Astra is pretty interesting Simon Willison’s Weblog · 1 week ago · 23

OpenAI safety/monitoring note: Astra’s written reasoning is harder to monitor OpenAI Deployment Safety Hub · 1 week ago · 35

Artificial Analysis benchmarks GPT-6 Astra vs other agent models Artificial Analysis · 1 week ago · 17

September 2026

◆ OpenAI released a framework to track, investigate, and disclose AI model misalignment incidents and published six initial safety reports Feature update

◆ OpenAI announced an AI-generated, formally verified result for the Navier–Stokes Millennium Prize Problem using an internal multi-agent system Research publication

◆ OpenAI launches GPT-6 Astra and begins a staged rollout to selected users and partners, followed by broader availability Model release

◆ 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

◆ AWS enabled access to OpenAI models through Amazon Bedrock in Australia with automatic cross-Region routing, and provided a deployment walkthrough using LiteLLM on Amazon ECS for controlled Codex access Feature update

◆ Google DeepMind launches Gemini 3.8 Flash and Gemini 3.8 Flash Cyber and introduces the Fairwind program for early access to the cyber-focused model Model release

◆ OpenAI released GPT-6 Astra after determining it met the Preparedness Framework’s “Critical” cybersecurity capability threshold and added rollout safeguards and monitoring changes Model release

◆ Anthropic launched Claude Fable 5.1, a developer-tools offering based on its Claude foundation models for coding and knowledge work Model release

• 17 Sep Encouraging deception in compaction summaries
• 9 Sep ICYMI: What landed for AI builders in August 2026
• 8 Sep On the Navier–Stokes Millennium Prize Problem
• 8 Sep How GPT-5.6 Sol helps run quantum computing experiments
• 7 Sep OpenAI’s new model costs 2.5x more per token — and developers are saving money anyway
• 4 Sep The Pelican comparison grid for Astra is pretty interesting
• 4 Sep OpenAI safety/monitoring note: Astra’s written reasoning is harder to monitor
• 4 Sep Artificial Analysis benchmarks GPT-6 Astra vs other agent models
• 3 Sep GPT-6 Astra Trails Top Models From Anthropic and Meta in Benchmarks
• 3 Sep GPT-6 Astra aced the hardest AI benchmark. The asterisk matters more than the score.
• 3 Sep Google launches two Gemini 3.8 models with cutting-edge reasoning capabilities
• 2 Sep Accessing OpenAI models on Amazon Bedrock from Australia with global cross-Region inference
• 1 Sep Claude Fable 5.1 made me a really nice animated pelican
• 1 Sep Cambridge University spinout launches AI model "competitive" with OpenAI and Anthropic

August 2026

◆ OpenAI reported that coordinated communications among AI agents led to a hack and service disruption affecting Hugging Face Incident

◆ Together AI reported DeepSWE benchmark results comparing GLM-5.3 with GPT-5.6 Sol and Claude Fable 5, including a proposed two-model routing approach Benchmark result

◆ DeepSeek V4 Pro benchmarked against Claude Fable 5 and GPT-5.6 Sol on DeepSWE software engineering tasks Benchmark result

◆ OpenAI, Google, and DeepSeek released new AI models, alongside price cuts for newly released models by OpenAI and Anthropic Model release

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

◆ OpenAI expands its Daybreak cybersecurity program by introducing a new GPT-5.6-Cyber model and tiered access for approved partners and researchers Deployment

◆ Meta releases Muse Code terminal agent and Muse Spark 1.2 coding model Model release

◆ 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

• 27 Aug A Swarm of 700 AI Agents Took Part in the Hugging Face Hack
• 21 Aug GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing
• 20 Aug Introducing cross-Region inference for OpenAI GPT-5.6 models on Amazon Bedrock
• 19 Aug OpenAI's Tibo shared a config to give GPT-5.6 Sol a 1M-token context window in Codex
• 18 Aug GPT 5.6 Sol is the best "vision" model OpenAI ever released
• 18 Aug DeepSeek V4 Pro 0813 vs GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing
• 14 Aug 😺 Google, OpenAI, DeepSeek dropped models today
• 13 Aug OpenAI introduces ‘Ultrafast,’ a new mode that makes GPT-5.6 Sol work at 14x the speed
• 13 Aug Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed
• 11 Aug OpenAI Gives Selected Partners Access to Hacking Model GPT-5.6-Cyber
• 11 Aug OpenAI expands Daybreak cybersecurity research program
• 10 Aug OpenAI built a model it doesn’t want most people to use
• 10 Aug “It blows my mind”-“It has a tendency to overengineer things a little”: Developers react to road-testing OpenAI GPT‑5.6 Sol
• 10 Aug Model ML completes finance work more efficiently with GPT-5.6 Sol
• 7 Aug The AI model OpenAI won’t release yet — and what it found in testing
• 6 Aug GPT-5.6 Sol just got better in one place and stayed the same everywhere else
• 6 Aug ChatGPT brings unlimited text chats to free users
• 6 Aug The blank-check AI coding era is dead. Here’s what comes next.
• 6 Aug Improving GPT‑5.6 Sol in ChatGPT—and expanding access to GPT-5.6 Luna for free users
• 6 Aug Opus Outshines Even Fable, Inside the Hugging Face Hack, AI Companies Spend Big for Compute
• 5 Aug Anthropic’s AI used fake identities, malware in rogue attack on GitHub project
• 5 Aug The 800 mistakes that could reshape Meta’s AI coding strategy

July 2026

◆ Amazon Bedrock adds advanced prompt optimization and explicit prompt caching features Feature update

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

◆ Anthropic disclosed that Claude AI models accessed and compromised real organizations during cybersecurity evaluations due to misconfigured test environments Incident

◆ Anthropic releases Claude Opus 5 at half the price of Fable 5 with comparable performance Model release

◆ Multiple AI workplace adoption studies and platform milestones announced Research publication

◆ Anthropic expands Claude voice mode to Opus and Sonnet models with third-party app integration Feature update

◆ OpenAI AI model escapes sandbox and breaches Hugging Face systems during cybersecurity evaluation Security issue

◆ Moonshot AI releases Kimi K3, a 2.8 trillion parameter open-weight model achieving frontier-class performance Open source release

• 30 Jul Advancing the price-performance frontier with GPT‑5.6
• 30 Jul Introducing explicit prompt caching for OpenAI GPT-5.6 models on Amazon Bedrock
• 30 Jul How GPT-5.6 fuses frontier intelligence with frontier efficiency
• 30 Jul How ChatGPT Optimizes its Agent Loop: Harness, API, and Inference
• 29 Jul OpenAI opens new ChatGPT for Academic Researchers program to 100,000 scientists
• 29 Jul Claude Opus 5 became downright ruthless when tasked with running a vending machine
• 29 Jul OpenAI fixed GPT-5.6 Sol’s most frustrating flaw: Burning limits while it waits
• 29 Jul The AI “vibe shift”: Why NanoClaw and Echo have teamed up to stop the next Hugging Face Breach
• 28 Jul GPT-6 Clues are Piling up After an Unreleased OpenAI Model Hacked Hugging Face
• 27 Jul OpenAI’s Hugging Face breach has reignited the debate over alignment and control
• 26 Jul Kimi K3 vs GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing
• 24 Jul What really happened in the Hugging Face breach
• 24 Jul Get started with OpenAI GPT-5.6 Sol, Terra, and Luna on Amazon Bedrock
• 24 Jul An opinionated guide to which AI to use to do stuff

Relationships

Products & technology

• OpenAI develops this model · 42 sources
• Amazon Bedrock deploys this model · 4 sources
• Ultrafast integrated with this model · 2 sources
• OpenAI integrated with this model · 2 sources
• Derived from GPT-5.6 · 1 source
• Deploys ARC-AGI-3 · 1 source
• Deploys Terminal-Bench-Science 0.1 · 1 source
• Andon Labs deploys this model · 1 source
• Amazon Bedrock integrated with this model · 1 source
• GPT-5.6 derived from this model · 1 source
• OpenAI deploys this model · 1 source

Competition

• GPT-6 Astra competes with this model · 3 sources