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  1. Home
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  3. Compare

Claude Sonnet 5 vs DeepSeek V4 Pro 0423

Compare Claude Sonnet 5 from Anthropic and DeepSeek V4 Pro 0423 from DeepSeek on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Favicon for anthropic
Claude Sonnet 5
Favicon for deepseek
DeepSeek V4 Pro 0423
Favicon for anthropic
Claude Sonnet 5
Favicon for deepseek
DeepSeek V4 Pro 0423

Overview

Claude Sonnet 5
Author
Anthropic
DeepSeek V4 Pro 0423
Author
DeepSeek
Claude Sonnet 5
Context length
1Mtokens
DeepSeek V4 Pro 0423
Context length
1.05Mtokens
Claude Sonnet 5
Reasoning
DeepSeek V4 Pro 0423
Reasoning
Claude Sonnet 5
Input modalities
DeepSeek V4 Pro 0423
Input modalities
Claude Sonnet 5
Output modalities
DeepSeek V4 Pro 0423
Output modalities

Claude Sonnet 5 vs DeepSeek V4 Pro 0423: side-by-side summary

Claude Sonnet 5 and DeepSeek V4 Pro 0423 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Sonnet 5, from Anthropic, has a 1,000,000-token context window and is priced at $2/M tokens input, $10/M tokens output on OpenRouter.

DeepSeek V4 Pro 0423, from DeepSeek, has a 1,048,576-token context window and is priced at $0.1756/M tokens input, $4.20/M tokens output on OpenRouter.

Context window
  • Claude Sonnet 5: 1,000,000 tokens
  • DeepSeek V4 Pro 0423: 1,048,576 tokens
Price
  • Claude Sonnet 5: $2/M tokens input, $10/M tokens output
  • DeepSeek V4 Pro 0423: $0.1756/M tokens input, $4.20/M tokens output
Provided by
  • Claude Sonnet 5: Anthropic
  • DeepSeek V4 Pro 0423: DeepSeek
  • model details, providers and pricing
Claude Sonnet 5
model details, providers and pricing
DeepSeek V4 Pro 0423

Claude Sonnet 5 vs DeepSeek V4 Pro 0423 at a glance

Claude Sonnet 5 vs DeepSeek V4 Pro 0423 comparison
Claude Sonnet 5DeepSeek V4 Pro 0423
Input price$2/M tokens$0.1756/M tokens
Output price$10/M tokens$4.20/M tokens
Context window1,000,000 tokens1,048,576 tokens
Intelligence Index34.430.1
Coding IndexNot available58.7
Agentic IndexNot availableNot available
Latency (p50)1.82 s1.07 s
Throughput (p50)70.0 tok/s78.0 tok/s

Oct 5, 2026

Is Claude Sonnet 5 cheaper than DeepSeek V4 Pro 0423?

DeepSeek V4 Pro 0423 is cheaper than Claude Sonnet 5 on OpenRouter: DeepSeek V4 Pro 0423 costs $0.1756/M tokens input and $4.20/M tokens output, while Claude Sonnet 5 costs $2/M tokens input and $10/M tokens output.

Which has the longer context window, Claude Sonnet 5 or DeepSeek V4 Pro 0423?

DeepSeek V4 Pro 0423 has the longer context window at 1,048,576 tokens, compared with 1,000,000 tokens for Claude Sonnet 5.

Which is faster, Claude Sonnet 5 or DeepSeek V4 Pro 0423?

DeepSeek V4 Pro 0423 is faster on OpenRouter, generating a median 78.0 tokens per second compared with 70.0 tokens per second for Claude Sonnet 5.

Attribute
Benchmark data updated
Frequently asked questions