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Gemini 3.5 Flash vs Kimi K2.5

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 K2.5

MoonshotAI's native multimodal model with state-of-the-art visual coding.

80256K ctx$0.38/$2.02 per M#25/92
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%Expert-Level—Factual Recall68.4%
Math
Competition Math95.6%Research Math39.0%
Coding
Real-World Coding79.3%
Agentic
Terminal Tasks—Novel Reasoning72.1%
MoonshotAIKimi K2.5
Reasoning
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI80.3
Reasoning & Knowledge
Graduate Science—Expert-Level24.4%Factual Recall—
Math
Competition Math—Research Math—
Coding
Real-World Coding73.8%
Agentic
Terminal Tasks43.2%Novel Reasoning11.8%
Specs
GoogleGemini 3.5 Flash
1.0M
Context
66K
Max output
May 2026
Released
MoonshotAIKimi K2.5
256K
Context
16K
Max output
Jan 2026
Released
Capabilities
GoogleGemini 3.5 Flash
Vision
Audio
Reasoning
MoonshotAIKimi K2.5
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 K2.5
Live pricing, shown before you run
Input$0.38/M tokens
Output$2.02/M tokens
Chat with Gemini 3.5 FlashGo to model
Chat with Kimi K2.5Go to model
Frequently Asked Questions: Gemini 3.5 Flash vs Kimi K2.5▼

Which is better, Gemini 3.5 Flash or Kimi K2.5?

▼

Based on the Capability Index, Gemini 3.5 Flash scores higher (86.2 vs 80.3). 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 K2.5?

▼

Kimi K2.5 has a lower blended cost. Gemini 3.5 Flash: $1.50 input / $9.00 output. Kimi K2.5: $0.38 input / $2.02 output.

Which has a larger context window, Gemini 3.5 Flash or Kimi K2.5?

▼

Gemini 3.5 Flash has a larger context window: Gemini 3.5 Flash supports 1M tokens vs Kimi K2.5 at 256K tokens.

Do both Gemini 3.5 Flash and Kimi K2.5 support vision?

▼

Yes, both Gemini 3.5 Flash and Kimi K2.5 support vision/image input.

Which has better coding performance, Gemini 3.5 Flash or Kimi K2.5?

▼

Gemini 3.5 Flash scores higher on SWE-bench Verified: Gemini 3.5 Flash resolves 79% vs Kimi K2.5 at 74%.

What are the key differences between Gemini 3.5 Flash and Kimi K2.5?

▼

Key differences: Gemini 3.5 Flash has a notably higher capability index (5.9 point gap); Kimi K2.5 is significantly cheaper. 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 K2.5 for free on idapt.app to see which performs better for your specific needs.

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