GPT-5 Nano vs Hy3 preview
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for GPT-5 Nano and Hy3 preview.
GPT-5 Nano
GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
Hy3 preview
Hy3 preview is a high-efficiency Mixture-of-Experts model from Tencent designed for agentic workflows and production use. It supports configurable reasoning levels across disabled, low, and high modes, allowing it to...
Technical Specifications
| Specification | GPT-5 Nano | Hy3 preview |
|---|---|---|
| Provider | OpenAI | Tencent |
| Context Window | 400,000 tokens | 262,144 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-08-07 | 2026-04-22 |
API Pricing Comparison
Input Price per Million Tokens
GPT-5 Nano
$0.05
Hy3 preview
$0.06
Output Price per Million Tokens
GPT-5 Nano
$0.40
Hy3 preview
$0.21
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
GPT-5 Nano Quirks & Gotchas
No developer gotchas reported.
Hy3 preview Quirks & Gotchas
No developer gotchas reported.