GET

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

kind inputactivity chathash d52f3f36extracted Jul 26, 2026version currentsource upstream spec ↗

Request body

8 properties · 2 required · 0 $defs
propertytypedescriptionconstraints
image_url*stringURL of the image to reason about. RGB JPEG or PNG.
prompt*stringText prompt to send to the model. English only.length ≥ 1
top_pnumberNucleus sampling probability mass.0 ≤ n ≤ 1 · default: 0.95
temperaturenumberSampling temperature. Lower is more deterministic.0 ≤ n ≤ 2 · default: 0.7
reasoning_modeenumWhether 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"
enable_safety_checkerbooleanWhether to enable the safety checker.default: true
system_promptstringOptional system prompt to steer the model. Reasoning behavior is controlled by the separate `reasoning_mode` field.nullable
max_tokensintegerMaximum number of tokens to generate.1 ≤ n ≤ 20000 · default: 1024

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/vision","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}