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Claude Opus 5.5 vs GPT 4.1 Mini

At a glance

Anthropic's new flagship for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5.

1M ctx$4.00/$20.00 per M

Mid-sized model competitive with GPT-4o at lower latency and cost.

691.0M ctx$0.40/$1.60 per M#58/92
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Capability
Capability—
Reasoning & Knowledge
Graduate Science38%90.6%Factual Recall469%72.2%
Math
Math Problems—Competition Math124%100.0%Research Math—
Coding
Code Editing—
Agentic
Novel Reasoning92.5%
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-10-02
Cheaper91%
Capability
CapabilityECI68.9
Reasoning & Knowledge
Graduate Science65.8%Factual Recall12.7%
Math
Math Problems87.3%Competition Math44.7%Research Math4.5%
Coding
Code Editing32.4%
Agentic
Novel Reasoning—
Specs
1M
Context
128K
Max output
Sep 2026
Released
1.0M
Context
33K
Max output
Apr 2025
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$4.00/M tokens
Output$20.00/M tokens
Cache read$0.20/M tokens
Cache write$5.00/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input90%$0.40/M tokens
Output92%$1.60/M tokens
Cache read50%$0.10/M tokens
Web search$0.01/search
Chat with Claude Opus 5.5Go to model
Chat with GPT 4.1 MiniGo to model
Frequently Asked Questions: Claude Opus 5.5 vs GPT 4.1 Mini▼

Which is better, Claude Opus 5.5 or GPT 4.1 Mini?

▼

Both Claude Opus 5.5 and GPT 4.1 Mini are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Claude Opus 5.5 or GPT 4.1 Mini?

▼

GPT 4.1 Mini has a lower blended cost. Claude Opus 5.5: $4.00 input / $20.00 output. GPT 4.1 Mini: $0.40 input / $1.60 output.

Which has a larger context window, Claude Opus 5.5 or GPT 4.1 Mini?

▼

GPT 4.1 Mini has a larger context window: Claude Opus 5.5 supports 1M tokens vs GPT 4.1 Mini at 1M tokens.

Do both Claude Opus 5.5 and GPT 4.1 Mini support vision?

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Yes, both Claude Opus 5.5 and GPT 4.1 Mini support vision/image input.

What are the key differences between Claude Opus 5.5 and GPT 4.1 Mini?

▼

Key differences: GPT 4.1 Mini is significantly cheaper; only Claude Opus 5.5 offers extended reasoning mode. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Opus 5.5 and GPT 4.1 Mini for free on idapt.app to see which performs better for your specific needs.

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