VerifiedChat
Hunyuan-4-preview
by 0G Foundation
Tencent Hunyuan Hy4 preview; 770B total / 49B active MoE tuned for agent, coding and production workflows — stronger task decomposition, long-horizon tool use and long-chain execution than Hunyuan 3. Served via Tencent Cloud MaaS (TokenHub), which exposes both OpenAI and Anthropic faces. Text in / text out, 1M context, up to 64K output. Deep thinking is on by default and can be disabled with reasoning_effort:"none" (enable_thinking is not honored); function calling, JSON mode (response_format: json_object / json_schema) and implicit prompt caching supported.
openaianthropicTool CallingModalities
Context
1M
1,000,000 tokens
Max Output
66K
65,536 tokens
Input
$0.834
per 1M tokens
Output
$2.501
per 1M tokens
Provider
2 endpoints across 2 providersTencent (CN)TEE (dstack)TeeTLS
Input / 1M
$0.834 ·4.30000G/M
Output / 1M
$2.501 ·12.91000G/M
Cache Read / 1M
$0.0417 ·0.21500G/M
Tencent (CN)TEE (dstack)TeeTLS
Input / 1M
$0.834 ·4.30990G/M
Output / 1M
$2.501 ·12.93000G/M
Cache Read / 1M
$0.0417 ·0.21550G/M
API
POSThttps://router-api.0g.ai/v1/chat/completions
curl "https://router-api.0g.ai/v1/chat/completions" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer <YOUR_API_KEY>" \
-d '{
"model": "hy4-preview",
"messages": [
{"role": "user", "content": "Hello!"}
],
"stream": true
}'Additional Features
TEE Verification
Request on-chain signature verification with verify_tee. The response includes a tee_verified field in the trace.
{
"model": "hy4-preview",
"messages": [{"role": "user", "content": "Hello!"}],
"verify_tee": true
}Provider Routing
Control which provider handles your request using the X-0G-Provider-* request headers.
X-0G-Provider-Address pins a provider; X-0G-Provider-Identity pins which of its upstreams to route through — both values come from the address and provider_identity fields of GET /v1/providers. Together they address one specific upstream of one provider. Send neither and the router picks by price and health, exactly as before.
curl "https://router-api.0g.ai/v1/chat/completions" \
-H "Authorization: Bearer <YOUR_API_KEY>" \
-H "Content-Type: application/json" \
-H "X-0G-Provider-Address: <PROVIDER_ADDRESS>" \
-H "X-0G-Provider-Identity: <UPSTREAM>" \
-H "X-0G-Provider-Sort: latency" \
-H "X-0G-Provider-Allow-Fallbacks: true" \
-d '{
"model": "hy4-preview",
"messages": [{"role": "user", "content": "Hello!"}]
}'