# Hy3

Tencent, released 2026-07-06

**Verdict: conditional.** Apache 2.0 open-weight MoE agentic model (295B total, 21B active) with strong tool-calling reliability and anti-hallucination behavior, but coding trails GLM-5.2 and self-hosting demands 8+ GPUs. The free OpenRouter tier that ran through Jul 21 is gone; OpenRouter now lists six providers at $0.13-$0.20 input and $0.53-$0.80 output per 1M tokens. Best for self-hosted coding agents and long-context document work where permissive licensing matters more than absolute benchmark scores. Last verified 2026-07-07.

## Pricing

- Input: $0.20 / 1M
- Output: $0.80 / 1M
- Context: 256K tokens; OpenRouter providers $0.13-$0.20 in / $0.53-$0.80 out; free tier ended

## Strengths

- Agentic coding with stable tool-calling across scaffoldings — SWE-Bench accuracy within 4% across CodeBuddy, Cline, and KiloCode
- Self-hosted deployments under Apache 2.0 — no API dependency, permissive commercial use, FP8 variant available for lower memory footprint
- Long-context (256K) document processing with anti-hallucination training — hallucination rate fell from 12.5% to 5.4% in internal evals
- Beating GLM-5.1 on expert blind tests (2.67/4 vs 2.51/4) — strongest in frontend, CI/CD, data/storage workflows
- Coding benchmarks (SWE-Bench Verified 78.0) trail GLM-5.2 (84.2) and Claude Sonnet 5 — not the choice for pure coding excellence
- Self-hosting cost — 295B total parameters needs 8 GPUs (H20-3e minimum); the free OpenRouter tier that ran through Jul 21, 2026 is no longer listed

## Benchmarks

- SWE-Bench Verified: 78.0 (https://hy.tencent.com/research/hy3)
- SWE-Bench Multilingual: 75.8 (https://hy.tencent.com/research/hy3)
- Terminal-Bench 2.1: 71.7 (https://hy.tencent.com/research/hy3)
- GPQA Diamond: 90.4 (https://hy.tencent.com/research/hy3)
- USAMO 2026: 72.0 (https://hy.tencent.com/research/hy3)
- IMOAnswerBench: 90.0 (https://hy.tencent.com/research/hy3)
- HLE (with tools): 53.2 (https://hy.tencent.com/research/hy3)

## Sources

- [Tencent Hy3 Hugging Face](https://huggingface.co/tencent/Hy3)
- [OpenRouter: Tencent Hy3 pricing](https://openrouter.ai/tencent/hy3)
- [MarkTechPost — Tencent Releases Hy3](https://www.marktechpost.com/2026/07/06/tencent-releases-hy3-open-295b-moe-model/)
- [Tencent Hy3 Technical Page](https://hy.tencent.com/research/hy3)
- [Tencent Official Release](https://www.tencent.com/en-us/articles/2202386.html)

Canonical: https://neomanex.com/models/hy3