Claude Opus 4.5 vs DeepSeek-V3.2 (Thinking) Comparison

Comparing Claude Opus 4.5 and DeepSeek-V3.2 (Thinking) across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude Opus 4.5 outperforms in 3 benchmarks (GPQA, SWE-Bench Verified, Terminal-Bench 2.0), while DeepSeek-V3.2 (Thinking) is better at 0 benchmarks.

Claude Opus 4.5 significantly outperforms across most benchmarks.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-V3.2 (Thinking) costs less

For input processing, Claude Opus 4.5 ($5.00/1M tokens) is 17.9x more expensive than DeepSeek-V3.2 (Thinking) ($0.28/1M tokens).

For output processing, Claude Opus 4.5 ($25.00/1M tokens) is 59.5x more expensive than DeepSeek-V3.2 (Thinking) ($0.42/1M tokens).

In conclusion, Claude Opus 4.5 is more expensive than DeepSeek-V3.2 (Thinking).*

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

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Claude Opus 4.5

Input tokens$5.00

Output tokens$25.00

Best providerAnthropic

DeepSeek-V3.2 (Thinking)

Input tokens$0.28

Output tokens$0.42

Best providerDeepSeek

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Context Window

Maximum input and output token capacity

Claude Opus 4.5 accepts 200,000 input tokens compared to DeepSeek-V3.2 (Thinking)'s 131,072 tokens. DeepSeek-V3.2 (Thinking) can generate longer responses up to 65,536 tokens, while Claude Opus 4.5 is limited to 64,000 tokens.

Claude Opus 4.5

Input200,000 tokens

Output64,000 tokens

DeepSeek-V3.2 (Thinking)

Input131,072 tokens

Output65,536 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 4.5 supports multimodal inputs, whereas DeepSeek-V3.2 (Thinking) does not.

Claude Opus 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 4.5

Text

Images

Audio

Video

DeepSeek-V3.2 (Thinking)

Text

Images

Audio

Video

License

Usage and distribution terms

Claude Opus 4.5 is licensed under a proprietary license, while DeepSeek-V3.2 (Thinking) uses MIT.

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

Claude Opus 4.5

Proprietary

Closed source

DeepSeek-V3.2 (Thinking)

MIT

Open weights

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while DeepSeek-V3.2 (Thinking) was released on 2025-12-01.

DeepSeek-V3.2 (Thinking) is 0 month newer than Claude Opus 4.5.

Claude Opus 4.5

Nov 24, 2025

3 months ago

DeepSeek-V3.2 (Thinking)

Dec 1, 2025

3 months ago

1w newer

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a documented knowledge cutoff of 2025-03-31, while DeepSeek-V3.2 (Thinking)'s cutoff date is not specified.

We can confirm Claude Opus 4.5's training data extends to 2025-03-31, but cannot make a direct comparison without DeepSeek-V3.2 (Thinking)'s cutoff date.

Claude Opus 4.5

Mar 2025

DeepSeek-V3.2 (Thinking)

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Provider Availability

Claude Opus 4.5 is available from Anthropic. DeepSeek-V3.2 (Thinking) is available from DeepSeek. The availability of providers can affect quality of the model and reliability.