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GPT 4.1 vs Gemini 3.5 Flash

At a glance

OpenAI's flagship GPT-4.1 with advanced instruction following and long context.

701.0M ctx$2.00/$8.00 per M#55/92

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
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI70.4
Reasoning & Knowledge
Graduate Science66.9%Expert-Level5.4%Factual Recall—
Math
Math Problems83.0%Competition Math38.3%Research Math5.5%
Coding
Real-World Coding48.5%Code Editing52.4%
Agentic
Novel Reasoning0.4%
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter22%Cheaper4%
Capability
CapabilityECI22%86.2
Reasoning & Knowledge
Graduate Science39%92.8%Expert-Level—Factual Recall68.4%
Math
Math Problems—Competition Math149%95.6%Research Math606%39.0%
Coding
Real-World Coding63%79.3%Code Editing—
Agentic
Novel Reasoning17062%72.1%
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
Input$2.00/M tokens
Output11%$8.00/M tokens
Cache read$0.50/M tokens
Web search29%$0.01/search
Live pricing, shown before you run
Input25%$1.50/M tokens
Output$9.00/M tokens
Reasoning$9.00/M tokens
Cache read70%$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 4.1Go to model
Chat with Gemini 3.5 FlashGo to model
Frequently Asked Questions: GPT 4.1 vs Gemini 3.5 Flash▼

Which is better, GPT 4.1 or Gemini 3.5 Flash?

▼

Based on the Capability Index, Gemini 3.5 Flash scores higher (86.2 vs 70.4). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, GPT 4.1 or Gemini 3.5 Flash?

▼

Gemini 3.5 Flash has a lower blended cost. GPT 4.1: $2.00 input / $8.00 output. Gemini 3.5 Flash: $1.50 input / $9.00 output.

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

▼

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

Do both GPT 4.1 and Gemini 3.5 Flash support vision?

▼

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

Which has better coding performance, GPT 4.1 or Gemini 3.5 Flash?

▼

Gemini 3.5 Flash scores higher on SWE-bench Verified: GPT 4.1 resolves 49% vs Gemini 3.5 Flash at 79%.

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

▼

Key differences: Gemini 3.5 Flash has a notably higher capability index (15.8 point gap); 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 and Gemini 3.5 Flash for free on idapt.app to see which performs better for your specific needs.

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