Tencent's Hy4 is out of preview on OpenRouter at half the preview's price: $0.417 in, $1.25 out per million tokens

Tencent's Hy4 is out of preview. OpenRouter now lists tencent/hy4, the full release, next to the August preview, and ArtificialWatch's catalog sweep caught it at 04:29 UTC on November 4 and confirmed it on the next sweep 62 seconds later. We read the listing ourselves.

THE PRICE

- Input: $0.417 per million tokens - Output: $1.25 per million tokens - Cached input: $0.021 per million tokens - That is exactly half of Hy4 preview's $0.834 in, $2.501 out and $0.042 cached, which stays listed.

THE SPECS (FROM THE LISTING)

- 1,048,576-token context window and up to 65,536 output tokens. - Text and image in, text out, with reasoning, tool calling and structured outputs. - The listing says the release improves on the preview across the board, with the biggest gains in agentic work and long-horizon, real-world productivity tasks. That is the vendor's description, not a measured result.

WHAT WE ALREADY KNEW

- Hy4 preview shipped on August 28 as a 770-billion-parameter mixture-of-experts model with 49 billion active, open-sourced under Apache 2.0 on Hugging Face.

WHAT WE DO NOT KNOW

- Whether the release ships open weights. Tencent's Hugging Face page still shows only Hy4-preview and its FP8 build, read 05:32 UTC. - How it scores. No third-party leaderboard has it yet; we will add it to /benchmarks when one does. - When Hy4 Flash arrives. @LuminaBench said on October 29 that Hy4 and Hy4 Flash were both coming; Flash is not in any catalog we sweep, and Tencent has not named it. We are hunting it and Hy5.