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DeepSeek V4 Flash (0731) vs Kimi K3

At a glance

The GA release of DeepSeek's efficiency-optimized V4 Flash, re-post-trained for coding, reasoning, and agent workflows.

1.0M ctx$0.07/$0.18 per M

MoonshotAI's 2.8T-parameter flagship for complex coding, knowledge work, and long-horizon agent runs.

1.0M ctx$3.00/$15.00 per M
Demos
All demos

No shared 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
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper98%
Reasoning & Knowledge
Graduate Science—Expert-Level—
Agentic
Terminal Tasks—
Reasoning
CodingInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Reasoning & Knowledge
Graduate Science93.5%Expert-Level43.5%
Agentic
Terminal Tasks88.3%
Specs
1.0M
Context
256K
Max output
Jul 2026
Released
1.0M
Context
16K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input98%$0.07/M tokens
Output99%$0.18/M tokens
Cache read95%$0.02/M tokens
Live pricing, shown before you run
Input$3.00/M tokens
Output$15.00/M tokens
Cache read$0.30/M tokens
Chat with DeepSeek V4 Flash (0731)Go to model
Chat with Kimi K3Go to model
Frequently Asked Questions: DeepSeek V4 Flash (0731) vs Kimi K3▼

Which is better, DeepSeek V4 Flash (0731) or Kimi K3?

▼

Both DeepSeek V4 Flash (0731) and Kimi K3 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, DeepSeek V4 Flash (0731) or Kimi K3?

▼

DeepSeek V4 Flash (0731) has a lower blended cost. DeepSeek V4 Flash (0731): $0.07 input / $0.18 output. Kimi K3: $3.00 input / $15.00 output.

Which has a larger context window, DeepSeek V4 Flash (0731) or Kimi K3?

▼

DeepSeek V4 Flash (0731) has a larger context window: DeepSeek V4 Flash (0731) supports 1M tokens vs Kimi K3 at 1M tokens.

Do both DeepSeek V4 Flash (0731) and Kimi K3 support vision?

▼

Kimi K3 supports vision/image input, but DeepSeek V4 Flash (0731) does not.

What are the key differences between DeepSeek V4 Flash (0731) and Kimi K3?

▼

Key differences: DeepSeek V4 Flash (0731) is significantly cheaper; only Kimi K3 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 V4 Flash (0731) and Kimi K3 for free on idapt.app to see which performs better for your specific needs.

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