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hy4-previewTencent

from /1M in$0.83tencent
context1.0M66K out
providers11 region
endpoints11 region
endpoints
1
regions
1
api
chat
released
August 2026

capabilities 4/8

visionreasoningtoolscachingweb searchjson schemacomputer useimage gen

endpoints

1 / 1 region
Providers serving hy4-preview, with pricing and measured performance. Best value in each column is coloured.
#flags
1TencentGlobal1.0M$0.83$2.50$0.04zdr
provider price, no markupper 1M tokensblank where no qualifying sample

measured

through Nov 2

no measured traffic for this model yet. the endpoints table above carries provider pricing

benchmarks

artificial analysis

no published benchmark scores for this model

call it

model=
tencent/hy4-preview

this model has no managed policy yet, so call the provider endpoint directly. every id in the endpoints table works the same way

Base url is https://router.requesty.ai/v1 for every id here. One key reaches the whole catalog.

quickstart

openai compatible
main.py
from openai import OpenAI client = OpenAI(    api_key="YOUR_REQUESTY_API_KEY",    base_url="https://router.requesty.ai/v1",) response = client.chat.completions.create(    model="tencent/hy4-preview",    messages=[        {"role": "user", "content": "Explain quantum computing in one paragraph."},    ],) print(response.choices[0].message.content)

Change the base url, use your Requesty key, set the model to any id in the call pane. Existing OpenAI SDK code needs no other edit, and the same key reaches every other model in the catalog, so switching later is a one-parameter change. Browse all models

notes

reference

Hy4 preview is Tencent's flagship class MoE model with 770B total parameters and 49B activated, supporting a 1M token context window. It is optimized for agent, coding, and productivity scenarios, with strong task decomposition, context tracking, instruction following, and long chain execution. It is suited for coding agents, complex tool use, and multi step agentic workflows.

questions 5

Which providers serve hy4-preview?
hy4-preview is available from 1 provider through Requesty: Tencent. All endpoints share one OpenAI-compatible API and one key, and Requesty fails over between them automatically.
How much does hy4-preview cost?
Pricing starts at $0.83 per million input tokens and $2.50 per million output tokens on the cheapest provider. Prices vary by provider and region; the table above shows every endpoint. Requesty charges exactly what the upstream provider charges, with no markup.
Is hy4-preview open weights?
Yes. hy4-preview is an open-weights model from Tencent, which is why multiple inference providers can host it. Provider choice affects price, latency, and data-privacy terms, all compared above.
What is the context window of hy4-preview?
hy4-preview supports up to 1.0M tokens of context, with up to 66K output tokens per response. Some providers expose a smaller window; check the per-endpoint context column above.
How do I use hy4-preview with the OpenAI SDK?
Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "tencent/hy4-preview" or any endpoint id from the table above. The quickstart section shows Python, JavaScript and cURL snippets.

more from tencent 1

Other Tencent models
modelcontextfrom /Mproviders
hy3262K$0.132

route hy4-preview through one endpoint

One key for 1 provider on this model and 600+ others. No markup on provider prices, automatic failover, caching built in. Weekly aggregates in the measured pane come from production traffic routed through Requesty, one line per provider on a shared axis. Methodology

hy4-preview1 provider1 endpointsfrom $0.83 /1M inctx 1.0Mupdated Nov 2