AI model matchup
GPT-5.6 Terra vs Hy4 Preview
A side-by-side look at published capability scores, listed API pricing, speed, context, and license - to help you decide which trade-offs fit your work.
GPT-5.6 TerravsHy4 Preview
Hy4 Preview leads the RankLLMs Index by 0.2 points (55.2 vs 55.0). Verified API Pricing: $2.00 (GPT-5.6 Terra) vs Free/Open Source (Hy4 Preview) per 1M tokens.
Capability profile
Speed duel
tpsPrice duel
$/1MShorter bar = cheaper. Blended per 1M tokens.
| Metric | GPT-5.6 Terra | Hy4 Preview |
|---|---|---|
| RankLLMs Overall Score | 55.0 pts | 55.2 pts ▲ |
| Reasoning | 59.2 ▲ | 58.5 |
| Coding | 77.4 ▲ | 77.0 |
| Agentic Tool Use | 52.0 ▲ | 49.0 |
| Code Arena Elo | 1523 | null |
| Inference Speed | 117 tps ▲ | 60 tps |
| API Price (per 1M tokens) | $2.00 | Free/Open Source |
| Context Window | 1.1M | 1M |
| License | Proprietary | Open Source |
| Global Rank | #18 | #17 ▲ |
Decision notes
What the numbers suggest
Hy4 Preview leads the RankLLMs overall score by 0.2 points. Hy4 Preview has the lower listed API rate (Free/Open Source per 1M tokens).
Treat the overall index as a starting point, then prioritize the benchmark that resembles your task. Published scores and provider pricing can change; this comparison does not represent a first-party test of either model.
- Overall index
- Hy4 Preview leads
- 55.0 to 55.2 pts
- Coding score
- GPT-5.6 Terra leads
- 77.4 to 77.0 pts
- Reasoning score
- GPT-5.6 Terra leads
- 59.2 to 58.5 pts
- Agentic score
- GPT-5.6 Terra leads
- 52.0 to 49.0 pts
Choose by workload
Which profile fits your use?
OpenAI
Consider GPT-5.6 Terra when
your workload gives more weight to the higher listed coding score, the higher listed reasoning score. Compare those signals with your own task mix, latency needs, and budget.
View GPT-5.6 Terra profileTencent
Consider Hy4 Preview when
your workload gives more weight to the higher overall index score, the lower listed API rate. Compare those signals with your own task mix, latency needs, and budget.
View Hy4 Preview profile