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Claude Haiku 4.5 vs DeepSeek V4 Flash (0731)

At a glance

Fast and efficient with near-frontier intelligence.

75200K ctx$1.00/$5.00 per M#41/92

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
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
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI75.3
Reasoning & Knowledge
Graduate Science60.5%
Math
Math Problems86.9%Competition Math35.8%Research Math4.1%
Agentic
Terminal Tasks29.8%Novel Reasoning1.3%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper95%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—
Math
Math Problems—Competition Math—Research Math—
Agentic
Terminal Tasks—Novel Reasoning—
Specs
200K
Context
64K
Max output
Oct 2025
Released
1.0M
Context
256K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$1.00/M tokens
Output$5.00/M tokens
Cache read$0.10/M tokens
Cache write$1.25/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input94%$0.07/M tokens
Output96%$0.18/M tokens
Cache read84%$0.02/M tokens
Chat with Claude Haiku 4.5Go to model
Chat with DeepSeek V4 Flash (0731)Go to model
Frequently Asked Questions: Claude Haiku 4.5 vs DeepSeek V4 Flash (0731)▼

Which is better, Claude Haiku 4.5 or DeepSeek V4 Flash (0731)?

▼

Both Claude Haiku 4.5 and DeepSeek V4 Flash (0731) 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, Claude Haiku 4.5 or DeepSeek V4 Flash (0731)?

▼

DeepSeek V4 Flash (0731) has a lower blended cost. Claude Haiku 4.5: $1.00 input / $5.00 output. DeepSeek V4 Flash (0731): $0.07 input / $0.18 output.

Which has a larger context window, Claude Haiku 4.5 or DeepSeek V4 Flash (0731)?

▼

DeepSeek V4 Flash (0731) has a larger context window: Claude Haiku 4.5 supports 200K tokens vs DeepSeek V4 Flash (0731) at 1M tokens.

Do both Claude Haiku 4.5 and DeepSeek V4 Flash (0731) support vision?

▼

Claude Haiku 4.5 supports vision/image input, but DeepSeek V4 Flash (0731) does not.

What are the key differences between Claude Haiku 4.5 and DeepSeek V4 Flash (0731)?

▼

Key differences: DeepSeek V4 Flash (0731) is significantly cheaper; only Claude Haiku 4.5 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 Claude Haiku 4.5 and DeepSeek V4 Flash (0731) for free on idapt.app to see which performs better for your specific needs.

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