What Hy4 is
Hy4 is a Tencent model that went live on OpenRouter on November 4, 2026. It follows Hy3. Per standard answer it costs 2.6 times more, $0.0010 against $0.0004, and its context window is 1M tokens against 262K.
| Released | November 4, 2026 |
| Provider | Tencent |
| Context window | 1M tokens |
| Input, per million tokens | $0.417 |
| Output, per million tokens | $1.2505 |
| Credits per message in Whizi | 2 |
| Minimum Whizi plan | Powerhouse |
How to try Hy4 in Whizi
Whizi puts Hy4 in the same model picker as ChatGPT, Claude and Gemini, so there is no separate Tencent account or API key to set up. Pick a plan on the pricing page, open a new chat, choose Hy4 in the model picker and send your first message.
Each message costs 2 credits, whatever its length. If a question turns out to suit another model better, switch in the same conversation and the thread carries across. See switching models mid-conversation.
What Hy4 costs
List rates are what the provider charges per token. The cost of one standard answer is the more useful number, because it prices the same unit of work across every model regardless of how each one is billed.
| Input, per million tokens | $0.417 |
| Output, per million tokens | $1.2505 |
| One standard answer | $0.0010 |
| One thousand answers | $1.04 |
| Context window | 1M tokens |
| Credits per message in Whizi | 2 |
| Minimum Whizi plan | Powerhouse |
| Rank by cost, of 137 priced models | 53 |
Prices are the published Tencent rates as carried by OpenRouter, last refreshed 2026-11-05. The full dataset covering all 155 models from 42 providers is the AI model cost index, which is free to reuse with attribution.
What it costs inside Whizi
Whizi meters messages in credits rather than tokens, and Hy4 is charged at 2 credits per message. The cost does not change with the length of your message or the length of the answer, so a one line question and a long document analysis cost the same.
| Plan | Price per month | Monthly credits | Messages on this model |
|---|---|---|---|
| Powerhouse | $49.99, or $34.99 billed yearly | 10,000 | 5,000 |
Hy4 is part of the Powerhouse catalogue. Anything not explicitly listed on the Starter or Pro tiers resolves to Powerhouse, which is the deliberate default for the frontier and specialist models. See plans and limits.
- Input $0.417 and output $1.2505 per million tokens
- $0.0010 for one standard answer, $1.04 for a thousand
- 1M token context window
- 2 credits per message inside Whizi
- Requires the Powerhouse plan or above
- Ranks 53 of 137 priced models by cost per answer
Frequently asked questions
What is Hy4?
Hy4 is a Tencent model released on November 4, 2026, with a 1M token context window. It follows Hy3. Per standard answer it costs 2.6 times more, $0.0010 against $0.0004, and its context window is 1M tokens against 262K.
How do I use Hy4?
Sign up for Whizi, open a new chat and choose Hy4 in the model picker. It is available on the Powerhouse plan and above at 2 credits per message, with no Tencent account or API key needed.
How much does Hy4 cost?
$0.417 per million input tokens and $1.2505 per million output tokens at list rates, which works out to $0.0010 for one standard answer of 1,000 tokens in and 500 out, or $1.04 for a thousand of them. Inside Whizi it is 2 credits per message on a monthly allowance, rather than metered per token.
Which Whizi plan includes Hy4?
Powerhouse and above, which is $49.99 per month or $34.99 billed yearly. At 2 credits per message, a Powerhouse allowance of 10,000 credits covers 5,000 messages on this model if you spend the whole allowance here, and most people mix in a 1 credit model for routine work so it goes further.
