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GPT 4 Turbo vs Gemini 3.5 Flash

At a glance

GPT-4 Turbo with vision capabilities and improved performance.

61128K ctx$10.00/$30.00 per M#68/92

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
Capability
CapabilityECI61.4
Reasoning & Knowledge
Graduate Science46.6%Factual Recall—
Math
Math Problems46.7%Competition Math6.7%Research Math—
Coding
Real-World Coding—
Agentic
Novel Reasoning—Task Horizon7min
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter40%Cheaper78%
Capability
CapabilityECI40%86.2
Reasoning & Knowledge
Graduate Science99%92.8%Factual Recall68.4%
Math
Math Problems—Competition Math1333%95.6%Research Math39.0%
Coding
Real-World Coding79.3%
Agentic
Novel Reasoning72.1%Task Horizon—
Specs
128K
Context
4K
Max output
Apr 2024
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$10.00/M tokens
Output$30.00/M tokens
Live pricing, shown before you run
Input85%$1.50/M tokens
Output70%$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 TurboGo to model
Chat with Gemini 3.5 FlashGo to model
Frequently Asked Questions: GPT 4 Turbo vs Gemini 3.5 Flash▼

Which is better, GPT 4 Turbo or Gemini 3.5 Flash?

▼

Based on the Capability Index, Gemini 3.5 Flash scores higher (86.2 vs 61.4). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, GPT 4 Turbo or Gemini 3.5 Flash?

▼

Gemini 3.5 Flash has a lower blended cost. GPT 4 Turbo: $10.00 input / $30.00 output. Gemini 3.5 Flash: $1.50 input / $9.00 output.

Which has a larger context window, GPT 4 Turbo or Gemini 3.5 Flash?

▼

Gemini 3.5 Flash has a larger context window: GPT 4 Turbo supports 128K tokens vs Gemini 3.5 Flash at 1M tokens.

Do both GPT 4 Turbo and Gemini 3.5 Flash support vision?

▼

Yes, both GPT 4 Turbo and Gemini 3.5 Flash support vision/image input.

What are the key differences between GPT 4 Turbo and Gemini 3.5 Flash?

▼

Key differences: Gemini 3.5 Flash has a notably higher capability index (24.8 point gap); Gemini 3.5 Flash 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 Turbo and Gemini 3.5 Flash for free on idapt.app to see which performs better for your specific needs.

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