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GPT 4.1 Mini vs Gemini 3.5 Flash

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

Google's high-speed thinking model for agentic workflows, chat, and coding.

861.0M ctx$1.50/$9.00 per M#11/92
Agent Demos
All agent demos

No shared agent 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 2026-07-10
Cheaper79%
Capability
CapabilityECI68.9
Reasoning & Knowledge
Graduate Science65.8%Factual Recall—
Math
Math Problems87.3%Competition Math44.7%Research Math4.5%
Coding
Real-World Coding—Code Editing32.4%
Agentic
Novel Reasoning—
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter25%
Capability
CapabilityECI25%86.2
Reasoning & Knowledge
Graduate Science41%92.8%Factual Recall68.4%
Math
Math Problems—Competition Math114%95.6%Research Math769%39.0%
Coding
Real-World Coding79.3%Code Editing—
Agentic
Novel Reasoning72.1%
Specs
1.0M
Context
33K
Max output
Apr 2025
Released
1.0M
Context
66K
Max output
May 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input73%$0.40/M tokens
Output82%$1.60/M tokens
Cache read33%$0.10/M tokens
Web search29%$0.01/search
Live pricing, shown before you run
Input$1.50/M tokens
Output$9.00/M tokens
Reasoning$9.00/M tokens
Cache read$0.15/M tokens
Cache write$0.08/M tokens
Image input$1.50/M tokens
Audio input$3.00/M tokens
Web search$0.01/search
Chat with GPT 4.1 MiniGo to model
Chat with Gemini 3.5 FlashGo to model
Frequently Asked Questions: GPT 4.1 Mini vs Gemini 3.5 Flash▼

Which is better, GPT 4.1 Mini or Gemini 3.5 Flash?

▼

Based on the Capability Index, Gemini 3.5 Flash scores higher (86.2 vs 68.9). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, GPT 4.1 Mini or Gemini 3.5 Flash?

▼

GPT 4.1 Mini has a lower blended cost. GPT 4.1 Mini: $0.40 input / $1.60 output. Gemini 3.5 Flash: $1.50 input / $9.00 output.

Which has a larger context window, GPT 4.1 Mini or Gemini 3.5 Flash?

▼

Gemini 3.5 Flash has a larger context window: GPT 4.1 Mini supports 1M tokens vs Gemini 3.5 Flash at 1M tokens.

Do both GPT 4.1 Mini and Gemini 3.5 Flash support vision?

▼

Yes, both GPT 4.1 Mini and Gemini 3.5 Flash support vision/image input.

What are the key differences between GPT 4.1 Mini and Gemini 3.5 Flash?

▼

Key differences: Gemini 3.5 Flash has a notably higher capability index (17.3 point gap); GPT 4.1 Mini is significantly cheaper; only Gemini 3.5 Flash 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 Gemini 3.5 Flash for free on idapt.app to see which performs better for your specific needs.

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