GPT-5.5
GPT-5.5 is a frontier AI model from OpenAI that has been used as a performance and cost benchmark in recent coverage. The model is referenced in cost comparisons with other frontier models, achieving similar quality to hybrid system architectures at higher expense, and serves as a capability reference point for emerging competitors including open-source models and other proprietary releases.
Updated 3 August 2026
Specifications
No specifications recorded yet.
Latest developments
Cursor's Agent Swarm: Cheaper Models Handle Most Coding When Frontier Models Plan
The Neuron · 6 days ago ·
5
LWiAI Podcast #247 - Opus 4.8, MAI, Anthropic IPO, Minimax-M3
Last Week in AI · 1 week ago ·
11
[AINews] Kimi K3 2.8T-A50B: the largest open model ever released; Opus 4.8-class at Sonnet 5 pricing
Latent Space · 2 weeks ago ·
19
Agentic Misalignment in Summer 2026
TLDR Dev · 2 weeks ago ·
6
Open-source AI is just “4 months behind” closed frontier models — and 10x cheaper
The New Stack · 2 weeks ago ·
45
datasette code-frequency chart on GitHub
Simon Willison · 2 weeks ago ·
29
6 months to live for open models
Interconnects · 3 weeks ago ·
44
Q3 2026
Moonshot AI releases Kimi K3, a 2.8 trillion parameter open-weight model achieving frontier-class performance Open source release
Open-source AI models demonstrate cost and performance competitive with frontier proprietary models Benchmark result
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-Live, a low-latency voice model for real-time conversational AI Feature update
OpenAI releases GPT-5.6 in multiple variants alongside frontier AI model releases from competitors Model release
Anthropic redeployed Fable 5 AI model with enhanced safety restrictions following government export controls Feature update
- Cursor's Agent Swarm: Cheaper Models Handle Most Coding When Frontier Models Plan
- LWiAI Podcast #247 - Opus 4.8, MAI, Anthropic IPO, Minimax-M3
- [AINews] Kimi K3 2.8T-A50B: the largest open model ever released; Opus 4.8-class at Sonnet 5 pricing
- Agentic Misalignment in Summer 2026
- Open-source AI is just “4 months behind” closed frontier models — and 10x cheaper
- datasette code-frequency chart on GitHub
- Basecamp Bench
- 6 months to live for open models
- [AINews] not much happened today
- The Pulse: Interesting AI coding stats from Cursor
- OpenAI GPT-5.6: AI Could Do Anything, Then It Met ARC-AGI-3
- Grok x Cursor
- GPT-5.5 Bio Bug Bounty
- Introducing GPT‑Live
- GLM 5.2 and the coming AI margin collapse (part 1)
- Fable is Back: This Safeguard Has Some AI in It!
Q2 2026
Multiple AI labs release new model variants and agent capabilities Model release
OpenAI Codex adoption in production applications across engineering and scientific research Deployment
Anthropic releases Claude Opus 4.8 with improved agentic capabilities and dynamic workflows Model release
OpenAI releases GPT-5.5 model with improved coding and reasoning capabilities Model release
- SkillOpt: Agent skills as trainable parameters
- The Sequence Radar #885: Last Week in AI: Models, Games, and the Future of Evaluation
- The State of AI Post-Training Agents
- ParallelKernelBench: Frontier LLMs can't write fast multi-GPU kernels (yet)
- How engineers at Nextdoor use Codex to build without limits
- How Wasmer used Codex to build a Node.js runtime for the edge
- Opus 4.8
- Deep Learning Weekly: Issue 457
- How Braintrust turns customer requests into code with Codex
- Warp’s big bet on building open source with GPT-5.5
- How Ramp engineers accelerate code review with Codex
- Databricks brings GPT-5.5 to enterprise agent workflows
- How NVIDIA engineers and researchers build with Codex
- Scaling Trusted Access for Cyber with GPT-5.5 and GPT-5.5-Cyber
- LWiAI Podcast #243 - GPT 5.5, DeepSeek V4, AI safety sabotage
- Deep Learning Weekly: Issue 453
- AstaBench update: New results, plus adoption from industry
- OpenAI jumps out of Microsoft's bed, into Amazon's Bedrock
- Sign of the future: GPT-5.5
- Introducing GPT-5.5
Relationships
Products & technology
- OpenAI develops this model · 17 sources
- Derived from GPT-5.4 Pro · 1 source
- NVIDIA deploys this model · 1 source
- Databricks integrated with this model · 1 source
- Warp integrated with this model · 1 source
- Warp deploys this model · 1 source
- Braintrust integrated with this model · 1 source
- Nextdoor deploys this model · 1 source
- GPT-Live integrated with this model · 1 source
- Braintrust deploys this model · 1 source
- Amazon Web Services deploys this model · 1 source