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Claude Sonnet 5.5 vs GPT-6 Cyber

Claude Sonnet 5.5 and GPT-6 Cyber are closely matched at 57.2 and 41.0 on the LLM Stats Score. Claude Sonnet 5.5 is 10.0x cheaper per token.

Anthropic · OpenAI · Updated for 2026

Which is better?

Claude Sonnet 5.5 and GPT-6 Cyber are closely matched on the overall LLM Stats Score at 57.2 and 41.0.

On price, Claude Sonnet 5.5 is roughly 10.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-6 Cyber also accepts a larger context window (1,050,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Sonnet 5.5

  • cost matters — it's about 10.0x cheaper per token

Choose GPT-6 Cyber

  • you process long inputs — it offers a 1,050,000 token context window
  • you want the most recent training data — it shipped Nov 2026

At a glance

The differences that matter most.

Claude Sonnet 5.5
Anthropic
GPT-6 Cyber
OpenAI
Core performance indexes
LLM Stats Score
57.2
#5
41.0
#79
Coding
47.1
#3
33.5
#46
Agents
42.7
#6
31.2
#47
Cost, coverage & limits
Benchmark wins
—
—
Input price
$2.00 / M
$20.00 / M
Output price
$10.00 / M
$100.00 / M
Context window
1,000,000
1,050,000

Individual benchmarks

47 reported for Claude Sonnet 5.5 · 1 for GPT-6 Cyber

No common benchmarks found

Claude Sonnet 5.5 and GPT-6 Cyberdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Claude Sonnet 5.5 costs less

For input processing, Claude Sonnet 5.5 ($2.00/1M tokens) is 10.0x cheaper than GPT-6 Cyber ($20.00/1M tokens).

For output processing, Claude Sonnet 5.5 ($10.00/1M tokens) is 10.0x cheaper than GPT-6 Cyber ($100.00/1M tokens).

In conclusion, GPT-6 Cyber is more expensive than Claude Sonnet 5.5.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Nov 09 2026 • llm-stats.com
Anthropic
Claude Sonnet 5.5
Input tokens$2.00
Output tokens$10.00
Best providerAnthropic
OpenAI
GPT-6 Cyber
Input tokens$20.00
Output tokens$100.00
Best providerOpenAI
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

GPT-6 Cyber accepts 1,050,000 input tokens compared to Claude Sonnet 5.5's 1,000,000 tokens. Both models can generate responses up to 128,000 tokens.

Anthropic
Claude Sonnet 5.5
Input1,000,000 tokens
Output128,000 tokens
OpenAI
GPT-6 Cyber
Input1,050,000 tokens
Output128,000 tokens
Mon Nov 09 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Sonnet 5.5 and GPT-6 Cyber support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Sonnet 5.5

Text
Images
Audio
Video

GPT-6 Cyber

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Sonnet 5.5

Proprietary

Closed source

GPT-6 Cyber

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 5.5 was released on 2026-09-28, while GPT-6 Cyber was released on 2026-11-05.

GPT-6 Cyber is 1 month newer than Claude Sonnet 5.5.

Claude Sonnet 5.5

Sep 28, 2026

1 months ago

GPT-6 Cyber

Nov 5, 2026

4 days ago

1mo newer

Knowledge Cutoff

When training data ends

Claude Sonnet 5.5 has a documented knowledge cutoff of 2026-06-01, while GPT-6 Cyber's cutoff date is not specified.

We can confirm Claude Sonnet 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without GPT-6 Cyber's cutoff date.

Claude Sonnet 5.5

Jun 2026

GPT-6 Cyber

—

Provider Availability

Claude Sonnet 5.5 is available from Anthropic. GPT-6 Cyber is available from OpenAI.

Claude Sonnet 5.5

anthropic logo
Anthropic
Input Price:Input: $2.00/1MOutput Price:Output: $10.00/1M

GPT-6 Cyber

openai logo
OpenAI
Input Price:Input: $20.00/1MOutput Price:Output: $100.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Sonnet 5.5 and GPT-6 Cyber side-by-side, then vote on the output you prefer.

Claude Sonnet 5.5
✓ Preferred
GPT-6 Cyber
Open in Playground

FAQ

Common questions about Claude Sonnet 5.5 vs GPT-6 Cyber.

Which is better, Claude Sonnet 5.5 or GPT-6 Cyber?

Claude Sonnet 5.5 and GPT-6 Cyber are closely matched on the LLM Stats Score at 57.2 and 41.0. Claude Sonnet 5.5 is made by Anthropic and GPT-6 Cyber is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Sonnet 5.5 compare to GPT-6 Cyber in benchmarks?

Claude Sonnet 5.5 scores BenchCAD (with Python tool): 96.3%, ArXivMath (with tools): 95.2%, Global-MMLU: 92.1%, MILU: 91.6%, SWE-bench Multilingual: 90.3%. GPT-6 Cyber scores ExploitGym: 48.5%.

Is Claude Sonnet 5.5 cheaper than GPT-6 Cyber?

Claude Sonnet 5.5 is 10.0x cheaper for input tokens. Claude Sonnet 5.5 costs $2.00/M input and $10.00/M output via anthropic. GPT-6 Cyber costs $20.00/M input and $100.00/M output via openai.

What are the context window sizes for Claude Sonnet 5.5 and GPT-6 Cyber?

Claude Sonnet 5.5 supports 1.0M tokens and GPT-6 Cyber supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Sonnet 5.5 and GPT-6 Cyber?

Key differences include LLM Stats Score (57.2 vs 41.0), context window (1.0M vs 1.1M), input pricing ($2.00 vs $20.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Sonnet 5.5 and GPT-6 Cyber?

Claude Sonnet 5.5 is developed by Anthropic and GPT-6 Cyber is developed by OpenAI.

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