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DeepSeek R1 (0528) vs Gemini 3.5 Flash

At a glance

Updated DeepSeek R1 with performance on par with OpenAI o1.

75164K ctx$0.50/$2.15 per M#44/92

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
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper73%
Capability
CapabilityECI74.5
Reasoning & Knowledge
Graduate Science76.3%Factual Recall27.4%
Math
Math Problems96.6%Competition Math66.4%Research Math—
Coding
Real-World Coding—Code Editing71.4%
Agentic
Novel Reasoning1.1%Task Horizon31min
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter16%
Capability
CapabilityECI16%86.2
Reasoning & Knowledge
Graduate Science22%92.8%Factual Recall150%68.4%
Math
Math Problems—Competition Math44%95.6%Research Math39.0%
Coding
Real-World Coding79.3%Code Editing—
Agentic
Novel Reasoning6336%72.1%Task Horizon—
Specs
164K
Context
33K
Max output
May 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
Input67%$0.50/M tokens
Output76%$2.15/M tokens
Cache read$0.35/M tokens
Live pricing, shown before you run
Input$1.50/M tokens
Output$9.00/M tokens
Reasoning$9.00/M tokens
Cache read57%$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 DeepSeek R1 (0528)Go to model
Chat with Gemini 3.5 FlashGo to model
Frequently Asked Questions: DeepSeek R1 (0528) vs Gemini 3.5 Flash▼

Which is better, DeepSeek R1 (0528) or Gemini 3.5 Flash?

▼

Based on the Capability Index, Gemini 3.5 Flash scores higher (86.2 vs 74.5). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, DeepSeek R1 (0528) or Gemini 3.5 Flash?

▼

DeepSeek R1 (0528) has a lower blended cost. DeepSeek R1 (0528): $0.50 input / $2.15 output. Gemini 3.5 Flash: $1.50 input / $9.00 output.

Which has a larger context window, DeepSeek R1 (0528) or Gemini 3.5 Flash?

▼

Gemini 3.5 Flash has a larger context window: DeepSeek R1 (0528) supports 164K tokens vs Gemini 3.5 Flash at 1M tokens.

Do both DeepSeek R1 (0528) and Gemini 3.5 Flash support vision?

▼

Gemini 3.5 Flash supports vision/image input, but DeepSeek R1 (0528) does not.

What are the key differences between DeepSeek R1 (0528) and Gemini 3.5 Flash?

▼

Key differences: Gemini 3.5 Flash has a notably higher capability index (11.7 point gap); DeepSeek R1 (0528) is significantly cheaper; only Gemini 3.5 Flash supports vision input. 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 DeepSeek R1 (0528) and Gemini 3.5 Flash for free on idapt.app to see which performs better for your specific needs.

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