SpaceXAI

Models served by SpaceXAI

Model	Context	Input /M	Output /M	Cache read /M	Latency	Throughput
Grok 4.20 x-ai/grok-4.20:xai	2M	$1.31/M	$2.63/M	$0.21/M	0.6s	68 tps
Grok 4.20 Multi-Agent x-ai/grok-4.20-multi-agent:xai	2M	$1.31/M	$2.63/M	$0.21/M	14.8s	342 tps
Grok 4.3 x-ai/grok-4.3:xai	1M	$1.31/M	$2.63/M	$0.21/M	0.6s	103 tps
Grok 4.5 x-ai/grok-4.5:xai	500k	$2.10/M	$6.30/M	$0.31/M	0.7s	51 tps
Grok 4.6 x-ai/grok-4.6:xai	500k	$2.10/M	$6.30/M	$0.53/M	0.9s	56 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 SpaceXAI via the API

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

curl https://nano-gpt.com/api/v1/chat/completions \
  -H "Authorization: Bearer $NANOGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "x-ai/grok-4.20:xai",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

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