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Claude 3.5 Sonnet vs DeepSeek V4 Pro (0813)

At a glance

Claude 3.5 Sonnet — better-than-Opus capabilities at Sonnet speeds.

68200K ctx#59/92

The GA release of DeepSeek's open 1.6T-parameter MoE flagship for advanced reasoning and long-horizon agents.

1.0M ctx$0.66/$1.98 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
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI· as of 2026-10-02
Capability
CapabilityECI67.5
Reasoning & Knowledge
Graduate Science55.3%Expert-Level4.1%Factual Recall—
Math
Math Problems56.9%Competition Math8.5%Research Math2.1%
Coding
Code Editing51.6%
Agentic
Novel Reasoning—Task Horizon21min
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Capability
Capability—
Reasoning & Knowledge
Graduate Science66%91.7%Expert-Level—Factual Recall52.9%
Math
Math Problems—Competition Math1064%98.6%Research Math—
Coding
Code Editing—
Agentic
Novel Reasoning61.3%Task Horizon—
Specs
200K
Context
8K
Max output
—
Released
1.0M
Context
256K
Max output
Aug 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Pricing not available
Live pricing, shown before you run
Input$0.66/M tokens
Output$1.98/M tokens
Cache read$0.02/M tokens
Chat with Claude 3.5 SonnetGo to model
Chat with DeepSeek V4 Pro (0813)Go to model
Frequently Asked Questions: Claude 3.5 Sonnet vs DeepSeek V4 Pro (0813)▼

Which is better, Claude 3.5 Sonnet or DeepSeek V4 Pro (0813)?

▼

Both Claude 3.5 Sonnet and DeepSeek V4 Pro (0813) 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 has a larger context window, Claude 3.5 Sonnet or DeepSeek V4 Pro (0813)?

▼

DeepSeek V4 Pro (0813) has a larger context window: Claude 3.5 Sonnet supports 200K tokens vs DeepSeek V4 Pro (0813) at 1M tokens.

Do both Claude 3.5 Sonnet and DeepSeek V4 Pro (0813) support vision?

▼

Claude 3.5 Sonnet supports vision/image input, but DeepSeek V4 Pro (0813) does not.

What are the key differences between Claude 3.5 Sonnet and DeepSeek V4 Pro (0813)?

▼

Key differences: only Claude 3.5 Sonnet supports vision input; only DeepSeek V4 Pro (0813) 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 Claude 3.5 Sonnet and DeepSeek V4 Pro (0813) for free on idapt.app to see which performs better for your specific needs.

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