Model Comparison

Claude Opus 5 vs DeepSeek-V3 0324Which is better in 2026?

Comparing Claude Opus 5 and DeepSeek-V3 0324 across benchmarks, pricing, and capabilities.

Verdict: Claude Opus 5 vs DeepSeek-V3 0324 — which is better?

Claude Opus 5 (by Anthropic) and DeepSeek-V3 0324 (by DeepSeek) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

On price, DeepSeek-V3 0324 is roughly 20.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude Opus 5 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Claude Opus 5 if…

  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Jul 2026

Choose DeepSeek-V3 0324 if…

  • cost matters — it's about 20.2x cheaper per token
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Claude Opus 5 and DeepSeek-V3 0324don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-V3 0324 costs less

For input processing, Claude Opus 5 ($5.00/1M tokens) is 17.9x more expensive than DeepSeek-V3 0324 ($0.28/1M tokens).

For output processing, Claude Opus 5 ($25.00/1M tokens) is 21.9x more expensive than DeepSeek-V3 0324 ($1.14/1M tokens).

In conclusion, Claude Opus 5 is more expensive than DeepSeek-V3 0324.*

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

Lowest available price from all providers
Sun Jul 26 2026 • llm-stats.com
Anthropic
Claude Opus 5
Input tokens$5.00
Output tokens$25.00
Best providerAnthropic
DeepSeek
DeepSeek-V3 0324
Input tokens$0.28
Output tokens$1.14
Best providerNovita
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude Opus 5 accepts 1,000,000 input tokens compared to DeepSeek-V3 0324's 163,840 tokens. DeepSeek-V3 0324 can generate longer responses up to 163,840 tokens, while Claude Opus 5 is limited to 128,000 tokens.

Anthropic
Claude Opus 5
Input1,000,000 tokens
Output128,000 tokens
DeepSeek
DeepSeek-V3 0324
Input163,840 tokens
Output163,840 tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 5 supports multimodal inputs, whereas DeepSeek-V3 0324 does not.

Claude Opus 5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 5

Text
Images
Audio
Video

DeepSeek-V3 0324

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 5 is licensed under a proprietary license, while DeepSeek-V3 0324 uses MIT + Model License (Commercial use allowed).

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

Claude Opus 5

Proprietary

Closed source

DeepSeek-V3 0324

MIT + Model License (Commercial use allowed)

Open weights

Release Timeline

When each model was launched

Claude Opus 5 was released on 2026-07-24, while DeepSeek-V3 0324 was released on 2025-03-25.

Claude Opus 5 is 16 months newer than DeepSeek-V3 0324.

Claude Opus 5

Jul 24, 2026

1 days ago

1.3yr newer
DeepSeek-V3 0324

Mar 25, 2025

1.3 years 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 5 is available from Anthropic. DeepSeek-V3 0324 is available from Novita.

Claude Opus 5

anthropic logo
Anthropic
Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M

DeepSeek-V3 0324

novita logo
Novita
Input Price:Input: $0.28/1MOutput Price:Output: $1.14/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Larger context window (1,000,000 tokens)
Supports multimodal inputs
DeepSeek
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Opus 5 and DeepSeek-V3 0324 side-by-side, then vote on the output you prefer.

Claude Opus 5
✓ Preferred
DeepSeek-V3 0324
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Opus 5
DeepSeek
DeepSeek-V3 0324

FAQ

Common questions about Claude Opus 5 vs DeepSeek-V3 0324.

Which is better, Claude Opus 5 or DeepSeek-V3 0324?

Claude Opus 5 (Anthropic) and DeepSeek-V3 0324 (DeepSeek) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Claude Opus 5 compare to DeepSeek-V3 0324 in benchmarks?

Claude Opus 5 scores BrowseComp: 90.8%, BioMysteryBench: 90.1%, OSWorld 2.0: 70.6%, DeepSWE 1.1: 68.8%, Humanity's Last Exam: 64.7%. DeepSeek-V3 0324 scores MATH-500: 94.0%, MMLU-Pro: 81.2%, GPQA: 68.4%, AIME 2024: 59.4%, LiveCodeBench: 49.2%.

Is Claude Opus 5 cheaper than DeepSeek-V3 0324?

DeepSeek-V3 0324 is 17.9x cheaper for input tokens. Claude Opus 5 costs $5.00/M input and $25.00/M output via anthropic. DeepSeek-V3 0324 costs $0.28/M input and $1.14/M output via novita.

What are the context window sizes for Claude Opus 5 and DeepSeek-V3 0324?

Claude Opus 5 supports 1.0M tokens and DeepSeek-V3 0324 supports 164K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Opus 5 and DeepSeek-V3 0324?

Key differences include context window (1.0M vs 164K), input pricing ($5.00 vs $0.28/M), multimodal support (yes vs no), licensing (Proprietary vs MIT + Model License (Commercial use allowed)). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 5 and DeepSeek-V3 0324?

Claude Opus 5 is developed by Anthropic and DeepSeek-V3 0324 is developed by DeepSeek.

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