New Sign up free, 10 calls on us. Up to $1, no card needed.

Hunyuan 3

invited beta chatCodeTool callingReasoning

Tencent's Hunyuan 3 large language model; 256K context, long-form Chinese and English reasoning.

Input
$0.14/M
Output
$0.58/M
Cache read
$0.035/M
Context
262K
vs GPT-4o
~97% cheaper

Benchmarks

Above average15 / 40
Hunyuan 3 other models measured peer average no peer scored higher
SWE-Bench Pro
57.9%
e-bench
50.2%
GPQA Diamond
90.4%
BrowseComp
84.2%

Vendor-published: Alibaba (Qwen) Anthropic ByteDance DeepSeek Google MiniMax Moonshot OpenAI Tencent Z.ai

Price in context

Where the price sits among 60 comparable models

Input$0.14/M
$0.05 · Qwen3 VL Flash GPT-5.4 Pro · $30
Output$0.58/M
$0.275 · DeepSeek V4 Flash GPT-5.4 Pro · $180
Cached read$0.035/M
$0.0028 · DeepSeek V4 Flash GPT-5.4 Pro · $15

The bar shows how this model’s price compares with every other model of the same kind on Synthorai. The cheapest and the most expensive are named at each end. These are base rates; batch, region and cache-write discounts are on the pricing page.

Use Hunyuan 3 in 30 seconds

OpenAI-compatible: swap the base_url, keep your SDK. POST /v1/chat/completions

from openai import OpenAI

client = OpenAI(
    base_url="https://synthorai.io/v1",
    api_key="sk-syn-...",
)

resp = client.chat.completions.create(
    model="hunyuan-3",
    messages=[{"role": "user", "content": "Summarize this diff"}],
    reasoning_effort="medium",
)
print(resp.choices[0].message.content)

FAQ

Is the Hunyuan 3 API free to try?

Hunyuan 3 is currently in invited beta: access is application-based rather than open signup. Apply from the Synthorai console; once approved, standard pay-as-you-go pricing applies with no subscription.

How much does Hunyuan 3 cost?

Hunyuan 3 costs $0.14 per million input tokens and $0.58 per million output tokens on Synthorai. That is the provider's list price, with no platform markup. Cached input tokens bill at $0.035/M.

Does Hunyuan 3 support prompt caching?

Yes: cached input tokens bill at $0.035/M (vs $0.14/M uncached) on Synthorai. Prompt caching guide →

How do I get access to Hunyuan 3?

Hunyuan 3 is in invited beta: request access from the Synthorai console. Once approved it works like every other model: point your OpenAI SDK at base_url="https://synthorai.io/v1" and set model="hunyuan-3".

Related models

Compare

Every value on this page is transcribed from the vendor's own documentation, linked above, and carries the date it was checked. Prices are compared across the catalogue; specification values that vendors define differently are shown with the difference stated rather than charted. Nothing here is measured by us, and nothing is scored.

Get your API key Compare your cost →