Intelligence
wins
54.8
GPT-5.5
35.9
Claude Sonnet 4.6
GPT-5.5 vs Claude Sonnet 4.6
GPT-5.5 from OpenAI and Claude Sonnet 4.6 from Anthropic are shown side by side so you can compare pricing, model IDs, context and output limits, modalities, tool use, release details, and benchmark results where data is available.
GPT-5.5OpenAI
Claude Sonnet 4.6Anthropic
Basic Information
Name
GPT-5.5GPT-5.5
Model id
GPT-5.5gpt-5.5
Intro
GPT-5.5GPT-5.5 is described by OpenAI as a smarter frontier model for coding, research, data analysis, and professional knowledge work. The official launch messaging emphasizes higher capability, better speed than previous difficult-work models, and strong performance on tasks involving documents and structured analysis. Its description should focus on broad professional intelligence rather than a single niche.
Author
GPT-5.5OpenAI
Released date
GPT-5.52026-04-23
Name
Claude Sonnet 4.6Claude Sonnet 4.6
Model id
Claude Sonnet 4.6claude-sonnet-4.6
Intro
Claude Sonnet 4.6Claude Sonnet 4.6 is presented as a broad upgrade for coding, computer use, long-context reasoning, agent planning, knowledge work, and design. Anthropic materials describe it as a strong middle tier with 1M-context beta support and better agent behavior. It is suited to teams that want near-frontier capability with more practical cost and latency than Opus.
Author
Claude Sonnet 4.6Anthropic
Released date
Claude Sonnet 4.62026-02-17
Pricing
Input
GPT-5.5$5/M
Output
GPT-5.5$30/M
Cached input
GPT-5.5$0.5/M
Input
Claude Sonnet 4.6$3/M
Output
Claude Sonnet 4.6$15/M
Cached input
Claude Sonnet 4.6$0.3/M
Context & Output
Context length
GPT-5.51.1M
Max output tokens
GPT-5.5128K
Context length
Claude Sonnet 4.61M
Max output tokens
Claude Sonnet 4.664K
Capabilities
Reasoning
GPT-5.5
Knowledge
GPT-5.52025-12-01
Attachment
GPT-5.5
Input modalities
GPT-5.5Image, PDF, Text
Output modalities
GPT-5.5Text
Temperature
GPT-5.5
Tool use
GPT-5.5
Reasoning
Claude Sonnet 4.6
Knowledge
Claude Sonnet 4.62025-08-31
Attachment
Claude Sonnet 4.6
Input modalities
Claude Sonnet 4.6Image, PDF, Text
Output modalities
Claude Sonnet 4.6Text
Temperature
Claude Sonnet 4.6
Tool use
Claude Sonnet 4.6
Benchmark
Coding
wins
59.1
GPT-5.5
46.4
Claude Sonnet 4.6
GPT-5.5OpenAI
Claude Sonnet 4.6Anthropic
Knowledge & Reasoning
GPQA
wins93.5%
HLE
wins44.3%
GPQA
79.9%
HLE
13.2%
Coding
SciCode
wins56.1%
Terminal-Bench Hard
wins60.6%
SciCode
46.9%
Terminal-Bench Hard
46.2%
Instruction Following & Agent Tasks
IFBench
wins75.9%
AA-LCR
wins74.3%
Tau2
wins93.9%
IFBench
41.2%
AA-LCR
57.7%
Tau2
79.5%
FAQ
Which model is better, GPT-5.5 or Claude Sonnet 4.6?+
GPT-5.5 and Claude Sonnet 4.6 should be compared by workload. This page places price, context, output limits, capabilities, and benchmark data side by side. It is also relevant to: claude vs chatgpt, claude ai vs chatgpt, chatgpt vs claude comparison, chat gpt vs claude.
Is Claude Sonnet 4.6 cheaper than GPT-5.5?+
Use the pricing rows above to compare input, output, and cached input prices for GPT-5.5 and Claude Sonnet 4.6.
Which model supports a longer context length?+
GPT-5.5 lists 1.1M context length, while Claude Sonnet 4.6 lists 1M.
Can I access both models through TokenHub?+
If both models are available in the TokenHub catalog, you can route requests to GPT-5.5 and Claude Sonnet 4.6 through the TokenHub API.