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Model comparison

Same task, different trade-offs.

We are not looking for an absolute winner. The comparison shows which model better suits your work, budget and required speed.

Models being compared

Model A Anthropic

Claude Opus 5.5

Data from September 27, 2026
Published September 22, 2026

More complex analysis and development

The current version of the Opus series for working with long prompts, text and code.

Model B OpenAI

GPT-6 Sol

Data from September 27, 2026
Published September 22, 2026

Everyday work and programming

A versatile choice for working with text, code and images.

Price, speed and usage

Costs
Model A · Claude Opus 5.5

$4 input / $20 output per million tokens in standard API mode.

Model B · GPT-6 Sol

$2 input / $10 output per million tokens. Above 272 thousand input tokens: 2× input and 1.5× output.

Speed
Model A · Claude Opus 5.5

The provider reports a medium response time within the Claude family.

Model B · GPT-6 Sol

We have not independently measured speed on a comparable basis.

Availability
Model A · Claude Opus 5.5

Claude API, Amazon Bedrock, Google Cloud and Microsoft Foundry

Model B · GPT-6 Sol

OpenAI API

Input length
Model A · Claude Opus 5.5

1 million tokens; standard output capped at 128 thousand tokens.

Model B · GPT-6 Sol

1,050,000 tokens in total; output capped at 128 thousand tokens.

Inputs
Model A · Claude Opus 5.5

Text and images → text

Model B · GPT-6 Sol

Text and images → text

Claude Opus 5.5

Use when…

  • Programming and multi-step tasks
  • Analysis of long documents and images

Choose another model when…

  • For short, routine tasks, compare the cost with cheaper models.

GPT-6 Sol

Use when…

  • Writing and fixing code
  • Processing documents and multi-step tasks

Choose another model when…

  • For simple classification, consider the cheaper GPT-6 Luna.

Original sources

Open the reference materials for each model