ZenMux

Data handling can vary by model and deployment. The privacy badge above shows the more conservative of the provider-wide fallback and the policies for routes on this page; each model page shows the policy for that specific route.

Models served by ZenMux

Model name

Model	Context	Input /M	Output /M	Cache read /M	Cache write /M	TTFT	Throughput
ByteDance Seed 2.0 Code bytedance-seed/seed-2.0-code	262k	$0.50/M	$3.00/M	N/A	N/A	N/A	N/A
>128k tokens		$1.00/M	$6.00/M	N/A	N/A
ByteDance Seed 2.0 Lite bytedance-seed/seed-2.0-lite	262k	$0.25/M	$2.00/M	N/A	N/A	N/A	N/A
>30k tokens		$0.28/M	$2.24/M	N/A	N/A
>128k tokens		$0.56/M	$4.48/M	N/A	N/A
Doubao Seed 2.0 Code Preview doubao-seed-2-0-code-preview-260215	256k	$0.782/M	$3.89/M	N/A	N/A	N/A	N/A
>128k tokens		$1.00/M	$6.00/M	N/A	N/A
Doubao Seed 2.0 Lite doubao-seed-2-0-lite-260215	256k	$0.25/M	$2.00/M	N/A	N/A	N/A	N/A
>128k tokens		$0.50/M	$4.00/M	N/A	N/A
Doubao Seed 2.0 Mini doubao-seed-2-0-mini-260215	256k	$0.10/M	$0.484/M	N/A	N/A	N/A	N/A
>128k tokens		$0.20/M	$0.80/M	N/A	N/A
Doubao Seed 2.0 Pro doubao-seed-2-0-pro-260215	256k	$0.782/M	$3.88/M	N/A	N/A	N/A	N/A
Doubao Seed Character bytedance/doubao-seed-character:zenmux	128k	$0.124/M	$0.309/M	$0.0248/M	$0.0026/M	N/A	N/A
>32k tokens		$0.186/M	$0.928/M	N/A	N/A

ByteDance Seed 2.0 Code

bytedance-seed/seed-2.0-code

Context

262k

Input /M

$0.50/M

Output /M

$3.00/M

Cache read /M

N/A

Cache write /M

N/A

TTFT

N/A

Throughput

N/A

Above 128k tokens: in $1.00/M · out $6.00/M

ByteDance Seed 2.0 Lite

bytedance-seed/seed-2.0-lite

Context

262k

Input /M

$0.25/M

Output /M

$2.00/M

Cache read /M

N/A

Cache write /M

N/A

TTFT

N/A

Throughput

N/A

Above 30k tokens: in $0.28/M · out $2.24/M

Above 128k tokens: in $0.56/M · out $4.48/M

Doubao Seed 2.0 Code Preview

doubao-seed-2-0-code-preview-260215

Context

256k

Input /M

$0.782/M

Output /M

$3.89/M

Cache read /M

N/A

Cache write /M

N/A

TTFT

N/A

Throughput

N/A

Above 128k tokens: in $1.00/M · out $6.00/M

Doubao Seed 2.0 Lite

doubao-seed-2-0-lite-260215

Context

256k

Input /M

$0.25/M

Output /M

$2.00/M

Cache read /M

N/A

Cache write /M

N/A

TTFT

N/A

Throughput

N/A

Above 128k tokens: in $0.50/M · out $4.00/M

Doubao Seed 2.0 Mini

doubao-seed-2-0-mini-260215

Context

256k

Input /M

$0.10/M

Output /M

$0.484/M

Cache read /M

N/A

Cache write /M

N/A

TTFT

N/A

Throughput

N/A

Above 128k tokens: in $0.20/M · out $0.80/M

Doubao Seed 2.0 Pro

doubao-seed-2-0-pro-260215

Context

256k

Input /M

$0.782/M

Output /M

$3.88/M

Cache read /M

N/A

Cache write /M

N/A

TTFT

N/A

Throughput

N/A

Doubao Seed Character

bytedance/doubao-seed-character:zenmux

Context

128k

Input /M

$0.124/M

Output /M

$0.309/M

Cache read /M

$0.0248/M

Cache write /M

$0.0026/M

TTFT

N/A

Throughput

N/A

Above 32k tokens: in $0.186/M · out $0.928/M

Prices are per million tokens. TTFT is the observed time to first token. Selectable routes include the applicable provider-selection markup; fixed routes show the standard model price. Availability and pricing refresh continuously; each model page shows the live provider comparison.

Using ZenMux via the API

Call a model served by ZenMux using its displayed model ID, including the provider suffix when selection is supported.

curl https://nano-gpt.com/api/v1/chat/completions \
  -H "Authorization: Bearer $NANOGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-seed/seed-2.0-code",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

For models with provider selection, append :zenmux to the model ID, set "provider": "zenmux" in the request body, or send an X-Provider: zenmux header. Explicit provider selection adds a route-specific markup over that provider's base price; the prices in the table above already include it. Models without provider selection use the displayed model ID without a provider suffix or selection surcharge.

See the API documentation for provider preferences, price-aware routing, and error behavior.