Aster

Models served by Aster

Model	Context	Input /M	Output /M	Cache hit	Latency	Throughput
GLM 5.2 zai-org/glm-5.2:aster	131k	$1.05/M	$4.20/M	0%	N/A	200 tps
GLM 5.2 (Thinking) zai-org/glm-5.2:thinking:aster	131k	$1.05/M	$4.20/M	0%	2s	200 tps
GPT OSS 120B openai/gpt-oss-120b:aster	131k	$0.16/M	$0.63/M	N/A	N/A	361 tps
GPT OSS 120B Fast openai/gpt-oss-120b:aster-fast	131k	$0.31/M	$1.26/M	N/A	N/A	644 tps

Prices are per million tokens and include the 5% provider-selection markup. Availability and pricing refresh continuously; each model page shows the live provider comparison.

Using Aster via the API

Append :aster to the model ID, set "provider": "aster" in the request body, or send an X-Provider: aster header. Explicit provider selection adds a 5% markup over that provider's base price; the prices in the table above already include it.

Aster offers multiple service lanes, each pinned with its own id: aster, aster-fast (Fast). The table shows which lane serves each row.

curl https://nano-gpt.com/api/v1/chat/completions \
  -H "Authorization: Bearer $NANOGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "zai-org/glm-5.2:aster",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

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