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Claude Sonnet 5 vs DeepSeek R1 (0528)

At a glance

Anthropic's fifth-generation Sonnet — near-Opus intelligence at Sonnet speed and price.

801M ctx$2.00/$10.00 per M#26/92

Updated DeepSeek R1 with performance on par with OpenAI o1.

75164K ctx$0.50/$2.15 per M#44/92
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
CI 72.7-84.7Provisional
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter8%
Capability
CapabilityECI8%80.1
Reasoning & Knowledge
Graduate Science19%90.5%Factual Recall25.0%
Math
Math Problems—Competition Math43%94.7%
Coding
Code Editing—
Agentic
Novel Reasoning—Task Horizon—
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper77%
Capability
CapabilityECI74.5
Reasoning & Knowledge
Graduate Science76.3%Factual Recall10%27.4%
Math
Math Problems96.6%Competition Math66.4%
Coding
Code Editing71.4%
Agentic
Novel Reasoning1.1%Task Horizon31min
Specs
1M
Context
128K
Max output
Jun 2026
Released
164K
Context
33K
Max output
May 2025
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$2.00/M tokens
Output$10.00/M tokens
Cache read43%$0.20/M tokens
Cache write$2.50/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input75%$0.50/M tokens
Output78%$2.15/M tokens
Cache read$0.35/M tokens
Chat with Claude Sonnet 5Go to model
Chat with DeepSeek R1 (0528)Go to model
Frequently Asked Questions: Claude Sonnet 5 vs DeepSeek R1 (0528)▼

Which is better, Claude Sonnet 5 or DeepSeek R1 (0528)?

▼

Based on the Capability Index, Claude Sonnet 5 scores higher (80.1 vs 74.5). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, Claude Sonnet 5 or DeepSeek R1 (0528)?

▼

DeepSeek R1 (0528) has a lower blended cost. Claude Sonnet 5: $2.00 input / $10.00 output. DeepSeek R1 (0528): $0.50 input / $2.15 output.

Which has a larger context window, Claude Sonnet 5 or DeepSeek R1 (0528)?

▼

Claude Sonnet 5 has a larger context window: Claude Sonnet 5 supports 1M tokens vs DeepSeek R1 (0528) at 164K tokens.

Do both Claude Sonnet 5 and DeepSeek R1 (0528) support vision?

▼

Claude Sonnet 5 supports vision/image input, but DeepSeek R1 (0528) does not.

What are the key differences between Claude Sonnet 5 and DeepSeek R1 (0528)?

▼

Key differences: Claude Sonnet 5 has a notably higher capability index (5.6 point gap); DeepSeek R1 (0528) is significantly cheaper; only Claude Sonnet 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 Sonnet 5 and DeepSeek R1 (0528) for free on idapt.app to see which performs better for your specific needs.

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