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GPT 4.1 Mini vs Claude Opus 5.5

At a glance

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

691.0M ctx$0.40/$1.60 per M#58/92

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
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
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—
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%
Specs
1.0M
Context
33K
Max output
Apr 2025
Released
1M
Context
128K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
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
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
Chat with GPT 4.1 MiniGo to model
Chat with Claude Opus 5.5Go to model
Frequently Asked Questions: GPT 4.1 Mini vs Claude Opus 5.5▼

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

▼

Both GPT 4.1 Mini and Claude Opus 5.5 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, GPT 4.1 Mini or Claude Opus 5.5?

▼

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

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

▼

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

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

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

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

▼

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 GPT 4.1 Mini and Claude Opus 5.5 for free on idapt.app to see which performs better for your specific needs.

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