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Gemini 3.5 Flash vs Kimi K2

At a glance
GoogleGemini 3.5 Flash

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

861.0M ctx$1.50/$9.00 per M#11/92
MoonshotAIKimi K2

MoonshotAI's large MoE model — 1T total parameters, 32B active.

78131K ctx$0.57/$2.30 per M#32/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
GoogleGemini 3.5 Flash
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter
Capability
CapabilityECI86.2
Reasoning & Knowledge
Graduate Science92.8%Factual Recall68.4%
Math
Competition Math95.6%Research Math39.0%
Coding
Real-World Coding79.3%
Agentic
Terminal Tasks—Novel Reasoning72.1%Task Horizon—
MoonshotAIKimi K2
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI78.2
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Competition Math—Research Math—
Coding
Real-World Coding—
Agentic
Terminal Tasks35.7%Novel Reasoning—Task Horizon54min
Specs
GoogleGemini 3.5 Flash
1.0M
Context
66K
Max output
May 2026
Released
MoonshotAIKimi K2
131K
Context
33K
Max output
Jul 2025
Released
Capabilities
GoogleGemini 3.5 Flash
Vision
Audio
Reasoning
MoonshotAIKimi K2
Vision
Audio
Reasoning
Pricing
GoogleGemini 3.5 Flash
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
MoonshotAIKimi K2
Live pricing, shown before you run
Input$0.57/M tokens
Output$2.30/M tokens
Chat with Gemini 3.5 FlashGo to model
Chat with Kimi K2Go to model
Frequently Asked Questions: Gemini 3.5 Flash vs Kimi K2▼

Which is better, Gemini 3.5 Flash or Kimi K2?

▼

Based on the Capability Index, Gemini 3.5 Flash scores higher (86.2 vs 78.2). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, Gemini 3.5 Flash or Kimi K2?

▼

Kimi K2 has a lower blended cost. Gemini 3.5 Flash: $1.50 input / $9.00 output. Kimi K2: $0.57 input / $2.30 output.

Which has a larger context window, Gemini 3.5 Flash or Kimi K2?

▼

Gemini 3.5 Flash has a larger context window: Gemini 3.5 Flash supports 1M tokens vs Kimi K2 at 131K tokens.

Do both Gemini 3.5 Flash and Kimi K2 support vision?

▼

Gemini 3.5 Flash supports vision/image input, but Kimi K2 does not.

What are the key differences between Gemini 3.5 Flash and Kimi K2?

▼

Key differences: Gemini 3.5 Flash has a notably higher capability index (8.0 point gap); Kimi K2 is significantly cheaper; only Gemini 3.5 Flash supports vision input; 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 Gemini 3.5 Flash and Kimi K2 for free on idapt.app to see which performs better for your specific needs.

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