Model Comparison

DeepSeek-R1-0528 vs Claude Opus 4.1

Both models are evenly matched across the benchmarks. DeepSeek-R1-0528 is 32.9x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

DeepSeek-R1-0528 outperforms in 2 benchmarks (AIME 2025, GPQA), while Claude Opus 4.1 is better at 2 benchmarks (SWE-Bench Verified, Terminal-Bench).

Both models are evenly matched across the benchmarks.

Fri May 15 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-R1-0528 costs less

For input processing, DeepSeek-R1-0528 ($0.50/1M tokens) is 30.0x cheaper than Claude Opus 4.1 ($15.00/1M tokens).

For output processing, DeepSeek-R1-0528 ($2.15/1M tokens) is 34.9x cheaper than Claude Opus 4.1 ($75.00/1M tokens).

In conclusion, Claude Opus 4.1 is more expensive than DeepSeek-R1-0528.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Fri May 15 2026 • llm-stats.com
DeepSeek
DeepSeek-R1-0528
Input tokens$0.50
Output tokens$2.15
Best providerDeepinfra
Anthropic
Claude Opus 4.1
Input tokens$15.00
Output tokens$75.00
Best providerAnthropic
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude Opus 4.1 accepts 200,000 input tokens compared to DeepSeek-R1-0528's 131,072 tokens. DeepSeek-R1-0528 can generate longer responses up to 131,072 tokens, while Claude Opus 4.1 is limited to 32,000 tokens.

DeepSeek
DeepSeek-R1-0528
Input131,072 tokens
Output131,072 tokens
Anthropic
Claude Opus 4.1
Input200,000 tokens
Output32,000 tokens
Fri May 15 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 4.1 supports multimodal inputs, whereas DeepSeek-R1-0528 does not.

Claude Opus 4.1 can handle both text and other forms of data like images, making it suitable for multimodal applications.

DeepSeek-R1-0528

Text
Images
Audio
Video

Claude Opus 4.1

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek-R1-0528 is licensed under MIT, while Claude Opus 4.1 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

DeepSeek-R1-0528

MIT

Open weights

Claude Opus 4.1

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek-R1-0528 was released on 2025-05-28, while Claude Opus 4.1 was released on 2025-08-05.

Claude Opus 4.1 is 2 months newer than DeepSeek-R1-0528.

DeepSeek-R1-0528

May 28, 2025

11 months ago

Claude Opus 4.1

Aug 5, 2025

9 months ago

2mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

DeepSeek-R1-0528 is available from DeepInfra, DeepSeek, Novita. Claude Opus 4.1 is available from Anthropic, Bedrock, Google.

DeepSeek-R1-0528

deepinfra logo
Deepinfra
Input Price:Input: $0.50/1MOutput Price:Output: $2.15/1M
deepseek logo
DeepSeek
Input Price:Input: $0.55/1MOutput Price:Output: $2.19/1M
novita logo
Novita
Input Price:Input: $0.70/1MOutput Price:Output: $2.50/1M

Claude Opus 4.1

anthropic logo
Anthropic
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
google logo
Google
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

DeepSeek
Less expensive input tokens
Less expensive output tokens
Has open weights
Higher AIME 2025 score (87.5% vs 78.0%)
Higher GPQA score (81.0% vs 80.9%)
Anthropic
Larger context window (200,000 tokens)
Supports multimodal inputs
Higher SWE-Bench Verified score (74.5% vs 44.6%)
Higher Terminal-Bench score (43.3% vs 5.7%)

Detailed Comparison

AI Model Comparison Table
Feature
DeepSeek
DeepSeek-R1-0528
Anthropic
Claude Opus 4.1

FAQ

Common questions about DeepSeek-R1-0528 vs Claude Opus 4.1.

Which is better, DeepSeek-R1-0528 or Claude Opus 4.1?

Both models are evenly matched across the benchmarks. DeepSeek-R1-0528 is made by DeepSeek and Claude Opus 4.1 is made by Anthropic. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does DeepSeek-R1-0528 compare to Claude Opus 4.1 in benchmarks?

DeepSeek-R1-0528 scores MMLU-Redux: 93.4%, SimpleQA: 92.3%, AIME 2024: 91.4%, AIME 2025: 87.5%, MMLU-Pro: 85.0%. Claude Opus 4.1 scores MMMLU: 89.5%, TAU-bench Retail: 82.4%, GPQA: 80.9%, AIME 2025: 78.0%, MMMU (validation): 77.1%.

Is DeepSeek-R1-0528 cheaper than Claude Opus 4.1?

DeepSeek-R1-0528 is 30.0x cheaper for input tokens. DeepSeek-R1-0528 costs $0.50/M input and $2.15/M output via deepinfra. Claude Opus 4.1 costs $15.00/M input and $75.00/M output via anthropic.

What are the context window sizes for DeepSeek-R1-0528 and Claude Opus 4.1?

DeepSeek-R1-0528 supports 131K tokens and Claude Opus 4.1 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek-R1-0528 and Claude Opus 4.1?

Key differences include context window (131K vs 200K), input pricing ($0.50 vs $15.00/M), multimodal support (no vs yes), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek-R1-0528 and Claude Opus 4.1?

DeepSeek-R1-0528 is developed by DeepSeek and Claude Opus 4.1 is developed by Anthropic.