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Description
Claude Sonnet 5.5 is a general-purpose AI model from Anthropic built for everyday professional tasks, agentic coding, knowledge work, and fast iteration. It is the second model in the Claude 5.5 family and is intended to complement Claude Opus 5.5 by offering lower-cost performance on more clearly defined workloads. Anthropic reports that Sonnet 5.5 generates output more than 30% faster than Sonnet 5 and usually completes tasks with fewer tokens. Pricing remains $2 per million input tokens and $10 per million output tokens, with cache reads priced at $0.20 per million tokens. On Terminal-Bench 4.0, the model scores 70.6%, compared with 10.3% for Sonnet 5, while also posting sizable improvements on FrontierCode, CursorBench, and other coding benchmarks. Its knowledge-work results are also substantially stronger, including a GDPval-AA score of 1844 and an AA-Briefcase score of 1811, both close to Claude Opus 5.5. Anthropic says early testers found the model faster, more collaborative, more concise, and particularly strong at design-oriented work such as polished interfaces and presentation decks. The model supports adjustable effort levels so users can trade off speed and cost against more extended reasoning and checking. Claude Sonnet 5.5 is available through Claude apps, Claude Code, the Claude Platform, and major cloud providers including AWS, Google Cloud, and Microsoft Azure.
Description
GPT-6.2 Astra is an unannounced AI model reportedly being tested by OpenAI as a potential successor to GPT-6 Astra. References to the model identifier have appeared in Codex usage reports shared by users, although OpenAI has not confirmed the model's development or deployment. The model is expected to build on the Astra family's capabilities in advanced reasoning, autonomous software engineering, and complex task execution. Potential programming capabilities include code generation, debugging, repository analysis, automated testing, and software architecture development. Its anticipated reasoning capabilities may support mathematical problem-solving, scientific analysis, technical research, and extended knowledge work. The model could also support agentic workflows that involve planning, interacting with external tools, executing commands, and evaluating results across multiple steps. Improvements in task persistence, instruction following, and reliable tool use may be important development priorities, although no official evaluations have been published. Reported appearances in Codex usage analytics suggest possible experimental integration with OpenAI's coding environment, but general availability has not been established. OpenAI has not released official details about GPT-6.2 Astra's architecture, context window, API access, pricing, safety evaluations, or release date.
API Access
Has API
Yes
API Access
Has API
Yes
Screenshots View All
No images available
Integrations
.NET
Yes
AiAssistWorks
Yes
CSS
Yes
Devin Desktop
Yes
Doraverse
Yes
Flowise
Yes
Go
Yes
Kubernetes
Yes
Lovable
Yes
Microsoft Foundry
Yes
Integrations
.NET
Yes
AiAssistWorks
Yes
CSS
Yes
Devin Desktop
Yes
Doraverse
Yes
Flowise
Yes
Go
Yes
Kubernetes
Yes
Lovable
Yes
Microsoft Foundry
Yes
Pricing Details
$2 per 1M tokens (input)
$2 per million input tokens and $10 per million output tokens.
Cache reads, which account for most costs in agentic and coding workloads, are priced at just $0.10 per million tokens
Cache reads, which account for most costs in agentic and coding workloads, are priced at just $0.10 per million tokens
Free Trial
No
Free Version
No
Pricing Details
No price information available.
Free Trial
No
Free Version
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Anthropic
Founded
2021
Country
United States
Website
claude.ai
Vendor Details
Company Name
OpenAI
Founded
2015
Country
United States
Website
openai.com