The AI arena is free today

Open Superagent

Claude Haiku 5.5 vs DeepSeek-V3

Claude Haiku 5.5 leads the LLM Stats Score 50.3 to 15.6. Claude Haiku 5.5 is 2.1x cheaper per token.

Anthropic · DeepSeek · Updated for 2026

Which is better?

Claude Haiku 5.5 leads the overall LLM Stats Score 50.3 to 15.6, ranking #18 overall.

On price, Claude Haiku 5.5 is roughly 2.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude Haiku 5.5 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Haiku 5.5

  • overall performance matters — it scores 50.3 and ranks #18 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • cost matters — it's about 2.1x cheaper per token
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Oct 2026

Choose DeepSeek-V3

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
DeepSeek-V3
DeepSeek
Core performance indexes
LLM Stats Score
50.3
#18
15.6
#243
Reasoning
47.4
#26
14.7
#242
Coding
40.7
#12
6.1
#205
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.10 / M
$0.27 / M
Output price
$0.50 / M
$0.89 / M
Context window
1,000,000
131,072

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Haiku 5.5
DeepSeek-V3
Math
25.7#110
18.0#194
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 20 for DeepSeek-V3

No common benchmarks found

Claude Haiku 5.5 and DeepSeek-V3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Claude Haiku 5.5 costs less

For input processing, Claude Haiku 5.5 ($0.10/1M tokens) is 2.7x cheaper than DeepSeek-V3 ($0.27/1M tokens).

For output processing, Claude Haiku 5.5 ($0.50/1M tokens) is 1.8x cheaper than DeepSeek-V3 ($0.89/1M tokens).

In conclusion, DeepSeek-V3 is more expensive than Claude Haiku 5.5.*

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

Lowest available price from all providers
Wed Oct 07 2026 • llm-stats.com
Anthropic
Claude Haiku 5.5
Input tokens$0.10
Output tokens$0.50
Best providerAnthropic
DeepSeek
DeepSeek-V3
Input tokens$0.27
Output tokens$0.89
Best providerDeepSeek
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Claude Haiku 5.5 accepts 1,000,000 input tokens compared to DeepSeek-V3's 131,072 tokens. DeepSeek-V3 can generate longer responses up to 131,072 tokens, while Claude Haiku 5.5 is limited to 128,000 tokens.

Anthropic
Claude Haiku 5.5
Input1,000,000 tokens
Output128,000 tokens
DeepSeek
DeepSeek-V3
Input131,072 tokens
Output131,072 tokens
Wed Oct 07 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Haiku 5.5 supports multimodal inputs, whereas DeepSeek-V3 does not.

Claude Haiku 5.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Haiku 5.5

Text
Images
Audio
Video

DeepSeek-V3

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Haiku 5.5 is licensed under a proprietary license, while DeepSeek-V3 uses MIT + Model License (Commercial use allowed).

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

Claude Haiku 5.5

Proprietary

Closed source

DeepSeek-V3

MIT + Model License (Commercial use allowed)

Open weights

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while DeepSeek-V3 was released on 2024-12-25.

Claude Haiku 5.5 is 22 months newer than DeepSeek-V3.

Claude Haiku 5.5

Oct 7, 2026

0 days ago

1.8yr newer
DeepSeek-V3

Dec 25, 2024

1.8 years ago

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while DeepSeek-V3's cutoff date is not specified.

We can confirm Claude Haiku 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without DeepSeek-V3's cutoff date.

Claude Haiku 5.5

Jun 2026

DeepSeek-V3

—

Provider Availability

Claude Haiku 5.5 is available from Anthropic. DeepSeek-V3 is available from DeepSeek, DeepInfra.

Claude Haiku 5.5

anthropic logo
Anthropic
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

DeepSeek-V3

deepseek logo
DeepSeek
Input Price:Input: $0.27/1MOutput Price:Output: $1.10/1M
deepinfra logo
Deepinfra
Input Price:Input: $0.32/1MOutput Price:Output: $0.89/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Haiku 5.5 and DeepSeek-V3 side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
DeepSeek-V3
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs DeepSeek-V3.

Which is better, Claude Haiku 5.5 or DeepSeek-V3?

Claude Haiku 5.5 leads the LLM Stats Score 50.3 to 15.6. Claude Haiku 5.5 is made by Anthropic and DeepSeek-V3 is made by DeepSeek. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Haiku 5.5 compare to DeepSeek-V3 in benchmarks?

Claude Haiku 5.5 scores Global-MMLU: 87.8%, MILU: 87.6%, BenchCAD (with Python tool): 87.0%, Chartography: 86.2%, SWE-bench Multilingual: 83.7%. DeepSeek-V3 scores DROP: 91.6%, CLUEWSC: 90.9%, MATH-500: 90.2%, MMLU-Redux: 89.1%, MMLU: 88.5%.

Is Claude Haiku 5.5 cheaper than DeepSeek-V3?

Claude Haiku 5.5 is 2.7x cheaper for input tokens. Claude Haiku 5.5 costs $0.10/M input and $0.50/M output via anthropic. DeepSeek-V3 costs $0.27/M input and $0.89/M output via deepseek.

What are the context window sizes for Claude Haiku 5.5 and DeepSeek-V3?

Claude Haiku 5.5 supports 1.0M tokens and DeepSeek-V3 supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Haiku 5.5 and DeepSeek-V3?

Key differences include LLM Stats Score (50.3 vs 15.6), context window (1.0M vs 131K), input pricing ($0.10 vs $0.27/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 Haiku 5.5 and DeepSeek-V3?

Claude Haiku 5.5 is developed by Anthropic and DeepSeek-V3 is developed by DeepSeek.

Related comparisons