GPT-5.2 vs Hy4 preview
Hy4 preview leads the LLM Stats Score 51.5 to 41.9.
OpenAI · Tencent · Updated for 2026
Which is better?
Hy4 preview leads the overall LLM Stats Score 51.5 to 41.9, ranking #10 overall.
In the 3 individual benchmarks reported for both models, Hy4 preview wins 2; 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 GPT-5.2
- you want predictable pricing at $1.75/M input and $14.00/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 2 of 3 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.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
24 reported for GPT-5.2 · 32 for Hy4 preview
GPT-5.2 outperforms in 1 benchmarks (GPQA), while Hy4 preview is better at 2 benchmarks (MCP Atlas, Toolathlon).
Hy4 preview shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only GPT-5.2 specifies input context (400,000 tokens). Only GPT-5.2 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
GPT-5.2 supports multimodal inputs, whereas Hy4 preview does not.
GPT-5.2 can handle both text and other forms of data like images, making it suitable for multimodal applications.
GPT-5.2
Hy4 preview
License
Usage and distribution terms
GPT-5.2 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.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
GPT-5.2 was released on 2025-12-11, while Hy4 preview was released on 2026-08-28.
Hy4 preview is 9 months newer than GPT-5.2.
Dec 11, 2025
8 months ago
Aug 28, 2026
3 days ago
8mo newerKnowledge Cutoff
When training data ends
GPT-5.2 has a documented knowledge cutoff of 2025-08-25, while Hy4 preview's cutoff date is not specified.
We can confirm GPT-5.2's training data extends to 2025-08-25, but cannot make a direct comparison without Hy4 preview's cutoff date.
Aug 2025
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Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-5.2 and Hy4 preview side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-5.2 vs Hy4 preview.