Models - Hopper

GET /v1/models returns the chat models available to your key. Use the model IDs below in your API requests.

Language models

USD per 1M tokens

Model	Input	Cached input	Output
Gemma 4 31B `gemma-4-31b`	$0.50	$0.15	$2.00

Speech models

Model	Modality	Price
Qwen3 TTS `qwen3-tts`	Text to speech	$0.30 / generated hour
Nemotron ASR `nemotron-asr`	Speech to text	$0.05 / input hour

Credits

Usage draws down prepaid credits. New accounts start with $5; top-ups of $5 to $10,000 are available in the console.

Spend headers

Every metered response carries x-hopper-credits-remaining-usd. Non-streaming chat completions and batch transcriptions also carry x-hopper-request-cost-usd, the cost of that request. On streaming chat completions and on text to speech, x-hopper-credits-remaining-usd is the balance before the request, because the cost is not known when the headers are sent.

​Language models

​Speech models

​Credits

​Spend headers

Language models

Speech models

Credits

Spend headers