The AI arena is free today

Open Superagent

Claude 3.5 Haiku vs Hy4 preview

Hy4 preview leads the LLM Stats Score 51.5 to 5.4.

Anthropic · Tencent · Updated for 2026

Which is better?

Hy4 preview leads the overall LLM Stats Score 51.5 to 5.4, ranking #10 overall.

In the 1 individual benchmarks reported for both models, Hy4 preview wins 1; this is a narrower head-to-head signal than the composite indexes.

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

Choose Claude 3.5 Haiku

  • you want predictable pricing at $0.80/M input and $4.00/M output

Choose Hy4 preview

  • overall performance matters — it scores 51.5 and ranks #10 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude 3.5 Haiku
Anthropic
Hy4 preview
Tencent
Core performance indexes
LLM Stats Score
5.4
#282
51.5
#10
Reasoning
5.6
#279
51.2
#8
Coding
4.4
#198
40.9
#10
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$0.80 / M
— / M
Output price
$4.00 / M
— / M
Context window
200,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude 3.5 Haiku
Hy4 preview
Math
10.8#240
40.3#12
Tool use
-4.2#176
32.6#7
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

9 reported for Claude 3.5 Haiku · 32 for Hy4 preview

1 shared

Claude 3.5 Haiku outperforms in 0 benchmarks, while Hy4 preview is better at 1 benchmark (GPQA).

Hy4 preview significantly outperforms across most benchmarks.

Mon Aug 31 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude 3.5 Haiku specifies input context (200,000 tokens). Only Claude 3.5 Haiku specifies output context (200,000 tokens).

Anthropic
Claude 3.5 Haiku
Input200,000 tokens
Output200,000 tokens
Tencent
Hy4 preview
Input- tokens
Output- tokens
Mon Aug 31 2026 • llm-stats.com

License

Usage and distribution terms

Claude 3.5 Haiku is licensed under a proprietary license, while Hy4 preview uses Apache 2.0.

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

Claude 3.5 Haiku

Proprietary

Closed source

Hy4 preview

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude 3.5 Haiku was released on 2024-10-22, while Hy4 preview was released on 2026-08-28.

Hy4 preview is 23 months newer than Claude 3.5 Haiku.

Claude 3.5 Haiku

Oct 22, 2024

1.9 years ago

Hy4 preview

Aug 28, 2026

2 days ago

1.8yr newer

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

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude 3.5 Haiku and Hy4 preview side-by-side, then vote on the output you prefer.

Claude 3.5 Haiku
✓ Preferred
Hy4 preview
Open in Playground

FAQ

Common questions about Claude 3.5 Haiku vs Hy4 preview.

Which is better, Claude 3.5 Haiku or Hy4 preview?

Hy4 preview leads the LLM Stats Score 51.5 to 5.4. Claude 3.5 Haiku is made by Anthropic and Hy4 preview is made by Tencent. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude 3.5 Haiku compare to Hy4 preview in benchmarks?

Claude 3.5 Haiku scores HumanEval: 88.1%, MGSM: 85.6%, DROP: 83.1%, MATH: 69.4%, MMLU-Pro: 65.0%. Hy4 preview scores GPQA: 92.3%, Terminal-Bench 2.1: 85.4%, WideSearch: 83.9%, MCP Atlas: 83.7%, SWE-bench Multilingual: 82.9%.

What are the context window sizes for Claude 3.5 Haiku and Hy4 preview?

Claude 3.5 Haiku supports 200K tokens and Hy4 preview supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude 3.5 Haiku and Hy4 preview?

Key differences include LLM Stats Score (5.4 vs 51.5), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3.5 Haiku and Hy4 preview?

Claude 3.5 Haiku is developed by Anthropic and Hy4 preview is developed by Tencent.

Related comparisons