Model Comparison

Claude Sonnet 4.5 vs DeepSeek-V3.2-Exp

Claude Sonnet 4.5 shows notably better performance in the majority of benchmarks. DeepSeek-V3.2-Exp is 19.7x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude Sonnet 4.5 outperforms in 2 benchmarks (GPQA, Terminal-Bench), while DeepSeek-V3.2-Exp is better at 1 benchmark (AIME 2025).

Claude Sonnet 4.5 shows notably better performance in the majority of benchmarks.

Mon Apr 20 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-V3.2-Exp costs less

For input processing, Claude Sonnet 4.5 ($3.00/1M tokens) is 11.1x more expensive than DeepSeek-V3.2-Exp ($0.27/1M tokens).

For output processing, Claude Sonnet 4.5 ($15.00/1M tokens) is 36.6x more expensive than DeepSeek-V3.2-Exp ($0.41/1M tokens).

In conclusion, Claude Sonnet 4.5 is more expensive than DeepSeek-V3.2-Exp.*

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

Lowest available price from all providers
Mon Apr 20 2026 • llm-stats.com
Anthropic
Claude Sonnet 4.5
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
DeepSeek
DeepSeek-V3.2-Exp
Input tokens$0.27
Output tokens$0.41
Best providerNovita
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude Sonnet 4.5 accepts 200,000 input tokens compared to DeepSeek-V3.2-Exp's 163,840 tokens. DeepSeek-V3.2-Exp can generate longer responses up to 65,536 tokens, while Claude Sonnet 4.5 is limited to 64,000 tokens.

Anthropic
Claude Sonnet 4.5
Input200,000 tokens
Output64,000 tokens
DeepSeek
DeepSeek-V3.2-Exp
Input163,840 tokens
Output65,536 tokens
Mon Apr 20 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Sonnet 4.5 supports multimodal inputs, whereas DeepSeek-V3.2-Exp does not.

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

Claude Sonnet 4.5

Text
Images
Audio
Video

DeepSeek-V3.2-Exp

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Sonnet 4.5 is licensed under a proprietary license, while DeepSeek-V3.2-Exp uses MIT.

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

Claude Sonnet 4.5

Proprietary

Closed source

DeepSeek-V3.2-Exp

MIT

Open weights

Release Timeline

When each model was launched

Both models were released on 2025-09-29.

They likely represent similar generations of model development.

Claude Sonnet 4.5

Sep 29, 2025

6 months ago

DeepSeek-V3.2-Exp

Sep 29, 2025

6 months ago

Knowledge Cutoff

When training data ends

Claude Sonnet 4.5 has a documented knowledge cutoff of 2025-01-31, while DeepSeek-V3.2-Exp's cutoff date is not specified.

We can confirm Claude Sonnet 4.5's training data extends to 2025-01-31, but cannot make a direct comparison without DeepSeek-V3.2-Exp's cutoff date.

Claude Sonnet 4.5

Jan 2025

DeepSeek-V3.2-Exp

—

Provider Availability

Claude Sonnet 4.5 is available from Anthropic. DeepSeek-V3.2-Exp is available from Novita.

Claude Sonnet 4.5

anthropic logo
Anthropic
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

DeepSeek-V3.2-Exp

novita logo
Novita
Input Price:Input: $0.27/1MOutput Price:Output: $0.41/1M
* 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 GPQA score (83.4% vs 79.9%)
Higher Terminal-Bench score (50.0% vs 37.7%)
DeepSeek
Less expensive input tokens
Less expensive output tokens
Has open weights
Higher AIME 2025 score (89.3% vs 87.0%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Sonnet 4.5
DeepSeek
DeepSeek-V3.2-Exp

FAQ

Common questions about Claude Sonnet 4.5 vs DeepSeek-V3.2-Exp

Claude Sonnet 4.5 shows notably better performance in the majority of benchmarks. Claude Sonnet 4.5 is made by Anthropic and DeepSeek-V3.2-Exp is made by DeepSeek. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Claude Sonnet 4.5 scores MMMLU: 89.1%, AIME 2025: 87.0%, TAU-bench Retail: 86.2%, GPQA: 83.4%, MMMUval: 77.8%. DeepSeek-V3.2-Exp scores SimpleQA: 97.1%, AIME 2025: 89.3%, MMLU-Pro: 85.0%, HMMT 2025: 83.6%, GPQA: 79.9%.
DeepSeek-V3.2-Exp is 11.1x cheaper for input tokens. Claude Sonnet 4.5 costs $3.00/M input and $15.00/M output via anthropic. DeepSeek-V3.2-Exp costs $0.27/M input and $0.41/M output via novita.
Claude Sonnet 4.5 supports 200K tokens and DeepSeek-V3.2-Exp supports 164K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 164K), input pricing ($3.00 vs $0.27/M), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.
Claude Sonnet 4.5 is developed by Anthropic and DeepSeek-V3.2-Exp is developed by DeepSeek.