DeepSeek-V4-Flash-Vision-Exp vs Hy4 preview
DeepSeek-V4-Flash-Vision-Exp and Hy4 preview are closely matched at 47.7 and 51.5 on the LLM Stats Score.
DeepSeek · Tencent · Updated for 2026
Which is better?
DeepSeek-V4-Flash-Vision-Exp and Hy4 preview are closely matched on the overall LLM Stats Score at 47.7 and 51.5.
In the 5 individual benchmarks reported for both models, Hy4 preview wins 4; 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 DeepSeek-V4-Flash-Vision-Exp
- you want predictable pricing at $0.22/M input and $0.66/M output
Choose Hy4 preview
- you value its reported benchmark strengths — it wins 4 of 5 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
7 reported for DeepSeek-V4-Flash-Vision-Exp · 32 for Hy4 preview
DeepSeek-V4-Flash-Vision-Exp outperforms in 1 benchmarks (Agents' Last Exam), while Hy4 preview is better at 4 benchmarks (AutomationBench, DeepSWE, NL2Repo, Terminal-Bench 2.1).
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 DeepSeek-V4-Flash-Vision-Exp specifies input context (1,048,576 tokens). Only DeepSeek-V4-Flash-Vision-Exp specifies output context (393,216 tokens).
Input capabilities
Documented input modalities across available providers
DeepSeek-V4-Flash-Vision-Exp supports multimodal inputs, whereas Hy4 preview does not.
DeepSeek-V4-Flash-Vision-Exp can handle both text and other forms of data like images, making it suitable for multimodal applications.
DeepSeek-V4-Flash-Vision-Exp
Hy4 preview
Release Timeline
When each model was launched
DeepSeek-V4-Flash-Vision-Exp was released on 2026-08-21, while Hy4 preview was released on 2026-08-28.
Hy4 preview is 0 month newer than DeepSeek-V4-Flash-Vision-Exp.
Aug 21, 2026
1 weeks ago
Aug 28, 2026
2 days ago
1w newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against DeepSeek-V4-Flash-Vision-Exp and Hy4 preview side-by-side, then vote on the output you prefer.
FAQ
Common questions about DeepSeek-V4-Flash-Vision-Exp vs Hy4 preview.