Hy3 by Tencent (via OpenRouter)

295B MoE open-weight model (21B active, 192 experts). GPQA Diamond 90.4, SWE-bench Verified 78.0. Apache 2.0.

Access
Free API tier
Free limits
Free for ~2 weeks from 2026-07-07 via OpenRouter (tencent/hy3:free); standard OpenRouter rate limits apply
Modality
text, code
Credit card
Not required
Commercial use
Allowed
License
Apache-2.0
Context window
262,144 tokens
Performance tier
Frontier · ~ Medium
Model ID
tencent/hy3:free
Base URL
https://openrouter.ai/api/v1
Last verified
July 2026

How to use Hy3

295B open-weight model from Tencent, free for ~2 weeks on OpenRouter. Top GPQA Diamond (90.4) and SWE-bench Verified (78.0). OpenAI-compatible via OpenRouter.

Quickstart

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $KEY" \
  -d '{"model":"tencent/hy3:free","messages":[{"role":"user","content":"hi"}]}'

Frequently asked

Is Hy3 free?

Yes. Tencent (via OpenRouter) offers it as Free API tier with these limits: Free for ~2 weeks from 2026-07-07 via OpenRouter (tencent/hy3:free); standard OpenRouter rate limits apply. No credit card is required.

Can I use Hy3 commercially?

Yes, commercial use is allowed under the Apache-2.0 license. Verify the current license or terms before shipping.

How do I start using Hy3?

Get a free API key from the provider dashboard. Set the base URL to https://openrouter.ai/api/v1 and the model to tencent/hy3:free. 295B open-weight model from Tencent, free for ~2 weeks on OpenRouter. Top GPQA Diamond (90.4) and SWE-bench Verified (78.0). OpenAI-compatible via OpenRouter.

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