GET

/v1/schemas/fal/chat/nvidia%2Fnemotron-3-nano-omni

Accept:

kind inputactivity chathash 5f684a43…extracted Jul 26, 2026version currentsource upstream spec ↗

Request body

7 properties · 1 required · 0 $defs

property	type	description	constraints
prompt*	string	Text prompt to send to the model. English only.	length ≥ 1
system_prompt	string	Optional system prompt to steer the model. Reasoning behavior is controlled by the separate `reasoning_mode` field.	nullable
reasoning_mode	enum	Whether the model should emit an explicit reasoning trace. `no_think` returns a direct answer; `think` returns chain-of-thought followed by the final answer.	think \| no_think · default: "no_think"
top_p	number	Nucleus sampling probability mass.	0 ≤ n ≤ 1 · default: 0.95
max_tokens	integer	Maximum number of tokens to generate.	1 ≤ n ≤ 20000 · default: 1024
temperature	number	Sampling temperature. Lower is more deterministic.	0 ≤ n ≤ 2 · default: 0.7
enable_safety_checker	boolean	Whether to enable the safety checker.	default: true

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"fal","endpointId":"nvidia/nemotron-3-nano-omni","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}