Model Comparison

Claude Opus 4.1 vs DeepSeek-R1-0528

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

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

Both models are evenly matched across the benchmarks.

Wed Apr 29 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-R1-0528 costs less

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

For output processing, Claude Opus 4.1 ($75.00/1M tokens) is 34.9x more expensive than DeepSeek-R1-0528 ($2.15/1M 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
Wed Apr 29 2026 • llm-stats.com
Anthropic
Claude Opus 4.1
Input tokens$15.00
Output tokens$75.00
Best providerAnthropic
DeepSeek
DeepSeek-R1-0528
Input tokens$0.50
Output tokens$2.15
Best providerDeepinfra
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.

Anthropic
Claude Opus 4.1
Input200,000 tokens
Output32,000 tokens
DeepSeek
DeepSeek-R1-0528
Input131,072 tokens
Output131,072 tokens
Wed Apr 29 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.

Claude Opus 4.1

Text
Images
Audio
Video

DeepSeek-R1-0528

Text
Images
Audio
Video

License

Usage and distribution terms

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

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

Claude Opus 4.1

Proprietary

Closed source

DeepSeek-R1-0528

MIT

Open weights

Release Timeline

When each model was launched

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

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

Claude Opus 4.1

Aug 5, 2025

8 months ago

2mo newer
DeepSeek-R1-0528

May 28, 2025

11 months ago

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

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

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

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
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

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%)
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%)

Detailed Comparison

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

FAQ

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

Both models are evenly matched across the benchmarks. Claude Opus 4.1 is made by Anthropic and DeepSeek-R1-0528 is made by DeepSeek. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Claude Opus 4.1 scores MMMLU: 89.5%, TAU-bench Retail: 82.4%, GPQA: 80.9%, AIME 2025: 78.0%, MMMU (validation): 77.1%. DeepSeek-R1-0528 scores MMLU-Redux: 93.4%, SimpleQA: 92.3%, AIME 2024: 91.4%, AIME 2025: 87.5%, MMLU-Pro: 85.0%.
DeepSeek-R1-0528 is 30.0x cheaper for input tokens. Claude Opus 4.1 costs $15.00/M input and $75.00/M output via anthropic. DeepSeek-R1-0528 costs $0.50/M input and $2.15/M output via deepinfra.
Claude Opus 4.1 supports 200K tokens and DeepSeek-R1-0528 supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 131K), input pricing ($15.00 vs $0.50/M), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.
Claude Opus 4.1 is developed by Anthropic and DeepSeek-R1-0528 is developed by DeepSeek.