Hy4 preview vs o4-mini
Hy4 preview leads the LLM Stats Score 51.5 to 27.9.
Tencent · OpenAI · Updated for 2026
Which is better?
Hy4 preview leads the overall LLM Stats Score 51.5 to 27.9, 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 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
Choose o4-mini
- you want predictable pricing at $1.10/M input and $4.40/M output
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
32 reported for Hy4 preview · 14 for o4-mini
Hy4 preview outperforms in 1 benchmarks (GPQA), while o4-mini is better at 0 benchmarks.
Hy4 preview significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only o4-mini specifies input context (200,000 tokens). Only o4-mini specifies output context (100,000 tokens).
Input capabilities
Documented input modalities across available providers
o4-mini supports multimodal inputs, whereas Hy4 preview does not.
o4-mini can handle both text and other forms of data like images, making it suitable for multimodal applications.
Hy4 preview
o4-mini
License
Usage and distribution terms
Hy4 preview is licensed under Apache 2.0, while o4-mini uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Hy4 preview was released on 2026-08-28, while o4-mini was released on 2025-04-16.
Hy4 preview is 17 months newer than o4-mini.
Aug 28, 2026
3 days ago
1.4yr newerApr 16, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
o4-mini has a documented knowledge cutoff of 2024-05-31, while Hy4 preview's cutoff date is not specified.
We can confirm o4-mini's training data extends to 2024-05-31, but cannot make a direct comparison without Hy4 preview's cutoff date.
—
May 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against Hy4 preview and o4-mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about Hy4 preview vs o4-mini.