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Claude Haiku 5.5 vs DeepSeek-V4-Flash-Vision-Exp

Claude Haiku 5.5 and DeepSeek-V4-Flash-Vision-Exp are closely matched at 50.3 and 44.7 on the LLM Stats Score. Claude Haiku 5.5 is 1.6x cheaper per token.

Anthropic · DeepSeek · Updated for 2026

Which is better?

Claude Haiku 5.5 and DeepSeek-V4-Flash-Vision-Exp are closely matched on the overall LLM Stats Score at 50.3 and 44.7.

On price, Claude Haiku 5.5 is roughly 1.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

DeepSeek-V4-Flash-Vision-Exp also accepts a larger context window (1,048,576 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

  • cost matters — it's about 1.6x cheaper per token
  • you want the most recent training data — it shipped Oct 2026

Choose DeepSeek-V4-Flash-Vision-Exp

  • you process long inputs — it offers a 1,048,576 token context window

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
DeepSeek-V4-Flash-Vision-Exp
DeepSeek
Core performance indexes
LLM Stats Score
50.3
#18
44.7
#39
Reasoning
47.4
#26
41.1
#58
Coding
40.7
#12
33.8
#39
Agents
33.7
#27
31.0
#37
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.10 / M
$0.22 / M
Output price
$0.50 / M
$0.66 / M
Context window
1,000,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Haiku 5.5
DeepSeek-V4-Flash-Vision-Exp
Tool use
20.8#57
21.3#54
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 7 for DeepSeek-V4-Flash-Vision-Exp

No common benchmarks found

Claude Haiku 5.5 and DeepSeek-V4-Flash-Vision-Expdon'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 2.2x cheaper than DeepSeek-V4-Flash-Vision-Exp ($0.22/1M tokens).

For output processing, Claude Haiku 5.5 ($0.50/1M tokens) is 1.3x cheaper than DeepSeek-V4-Flash-Vision-Exp ($0.66/1M tokens).

In conclusion, DeepSeek-V4-Flash-Vision-Exp 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-V4-Flash-Vision-Exp
Input tokens$0.22
Output tokens$0.66
Best providerDeepSeek
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

DeepSeek-V4-Flash-Vision-Exp accepts 1,048,576 input tokens compared to Claude Haiku 5.5's 1,000,000 tokens. DeepSeek-V4-Flash-Vision-Exp can generate longer responses up to 393,216 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-V4-Flash-Vision-Exp
Input1,048,576 tokens
Output393,216 tokens
Wed Oct 07 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 5.5 and DeepSeek-V4-Flash-Vision-Exp support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Haiku 5.5

Text
Images
Audio
Video

DeepSeek-V4-Flash-Vision-Exp

Text
Images
Audio
Video

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while DeepSeek-V4-Flash-Vision-Exp was released on 2026-08-21.

Claude Haiku 5.5 is 2 months newer than DeepSeek-V4-Flash-Vision-Exp.

Claude Haiku 5.5

Oct 7, 2026

0 days ago

1mo newer
DeepSeek-V4-Flash-Vision-Exp

Aug 21, 2026

1 months ago

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while DeepSeek-V4-Flash-Vision-Exp'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-V4-Flash-Vision-Exp's cutoff date.

Claude Haiku 5.5

Jun 2026

DeepSeek-V4-Flash-Vision-Exp

—

Provider Availability

Claude Haiku 5.5 is available from Anthropic. DeepSeek-V4-Flash-Vision-Exp is available from DeepSeek, DeepInfra.

Claude Haiku 5.5

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

DeepSeek-V4-Flash-Vision-Exp

deepseek logo
DeepSeek
Input Price:Input: $0.22/1MOutput Price:Output: $0.66/1M
deepinfra logo
Deepinfra
Input Price:Input: $0.44/1MOutput Price:Output: $1.32/1M
* 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-V4-Flash-Vision-Exp side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
DeepSeek-V4-Flash-Vision-Exp
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs DeepSeek-V4-Flash-Vision-Exp.

Which is better, Claude Haiku 5.5 or DeepSeek-V4-Flash-Vision-Exp?

Claude Haiku 5.5 and DeepSeek-V4-Flash-Vision-Exp are closely matched on the LLM Stats Score at 50.3 and 44.7. Claude Haiku 5.5 is made by Anthropic and DeepSeek-V4-Flash-Vision-Exp 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-V4-Flash-Vision-Exp 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-V4-Flash-Vision-Exp scores Terminal-Bench 2.1: 83.9%, DSBench-Hard: 63.6%, DeepSWE: 59.3%, NL2Repo: 57.7%, ZEROBench: 35.0%.

Is Claude Haiku 5.5 cheaper than DeepSeek-V4-Flash-Vision-Exp?

Claude Haiku 5.5 is 2.2x cheaper for input tokens. Claude Haiku 5.5 costs $0.10/M input and $0.50/M output via anthropic. DeepSeek-V4-Flash-Vision-Exp costs $0.22/M input and $0.66/M output via deepseek.

What are the context window sizes for Claude Haiku 5.5 and DeepSeek-V4-Flash-Vision-Exp?

Claude Haiku 5.5 supports 1.0M tokens and DeepSeek-V4-Flash-Vision-Exp supports 1.0M 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-V4-Flash-Vision-Exp?

Key differences include LLM Stats Score (50.3 vs 44.7), context window (1.0M vs 1.0M), input pricing ($0.10 vs $0.22/M), licensing (Proprietary vs Unknown). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and DeepSeek-V4-Flash-Vision-Exp?

Claude Haiku 5.5 is developed by Anthropic and DeepSeek-V4-Flash-Vision-Exp is developed by DeepSeek.

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