Gemini 3.8 Flash vs Hy4 preview: Specs & Benchmark Comparison
| Characteristic | Gemini 3.8 Flash | Hy4 preview |
|---|---|---|
| Company | Tencent | |
| Release Date | September 2, 2026 | August 28, 2026 |
| Parameters | — | 770B |
| Multimodal | Yes | No |
| Context (input) | 1.0M | — |
| Context (output) | 66K | — |
| Input Price / 1M | $0.75 | — |
| Output Price / 1M | $3.75 | — |
| Average Score | 0.6 | 0.6 |
| Benchmarks | ||
| BioMysteryBench | 0.6 | 0.7 |
| GDPval-AA | 0.5 | 0.6 |
| Terminal-Bench 2.1 | 0.9 | 0.9 |
Visual Benchmark Comparison
Gemini 3.8 Flash
Hy4 preview
BioMysteryBench0.6 vs 0.7
0.6
0.7
GDPval-AA0.5 vs 0.6
0.5
0.6
Terminal-Bench 2.10.9 vs 0.9
0.9
0.9
Verdict
Both models show equal results — the choice depends on your specific use case.
Overall Performance
Both models show comparable average scores: Gemini 3.8 Flash — 0.6, Hy4 preview — 0.6.
Recency
Both models were released around the same time: 9/2/2026 and 8/28/2026.
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Frequently Asked Questions
Which is better for coding — Gemini 3.8 Flash or Hy4 preview?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Gemini 3.8 Flash or Hy4 preview?
API pricing data is available on the individual model pages.
Which has a larger context window — Gemini 3.8 Flash or Hy4 preview?
Context window data is available on the individual model pages.
The Gemini 3.8 Flash and Hy4 preview comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3.8 Flash or Hy4 preview page. See also the complete list of AI model comparisons.