ComfyUI Node
arkennemasis fal · Nano Banana 2 Lite · ~$0.05/image
Nano banana lite is the efficiency-focused model in the image generation family. Sub-2 second latency with cost-effective generation and editing, fast multi-turn local edits, and 14 supported aspect ratios. Pricing (from fal, 2026-09-29): Text tokens (per 1M): $0.3125 input, $1.875 output. Image tokens (per 1M): $0.3125 input, $37.50 output. Output images are generated at a fixed 1K (1024x1024px) Model page: https://fal.ai/models/google/nano-banana-2-lite Key: FAL_KEY in the .env next to run_nvidia_gpu.bat. Results are saved in output/fal/google_nano-banana-2-lite/.
arkennemasis fal · Nano Banana 2 Lite · ~$0.05/image
- images
- image_paths
- description
- info
◄prompt►
◄system_prompt►
◄aspect_ratioauto►
◄num_images1►
◄seed-1►
◄output_formatpng►
◄safety_tolerance4►
◄limit_generationstrue►
◄thinking_level(not set)►
◄max_cost_usd20.0►
◄reuse_identical_runtrue►
◄extra_json►
◄max_concurrent1►
Categoryarkennemasis/fal/Image/Google
Inputs (13)
| Name | Type | Default | Description |
|---|---|---|---|
| prompt | STRING | The text prompt to generate an image from. | |
| system_prompt | STRING | Optional system instruction that steers the model's persona and output style across the request. Leave blank to omit; when provided, it is sent as the system instruction to Gemini (or as a system message on OpenAI-compatible providers). Empty leaves it out. | |
| aspect_ratio | COMBO | auto | The aspect ratio of the generated image. Supports extreme ratios: 4:1, 1:4, 8:1, 1:8. Use "auto" to let the model decide based on the prompt. |
| num_images | INT | 11–4 | The number of images to generate. |
| seed | INT | -1-1–2147483647 | The seed for the random number generator. -1 leaves it to the model. |
| output_format | COMBO | png | The format of the generated image. |
| safety_tolerance | COMBO | 4 | The safety tolerance level for content moderation. 1 is the most strict (blocks most content), 6 is the least strict. |
| limit_generations | BOOLEAN | true | Experimental parameter to limit the number of generations from each round of prompting to 1. Set to `True` to to disregard any instructions in the prompt regarding the number of images to generate and ignore any intermediate images generated by the model. This may affect generation quality. |
| thinking_level | COMBO | (not set) | When set, enables model thinking with the given level ('minimal' or 'high') and includes thoughts in the generation. Omit to disable. '(not set)' leaves it to the model. |
| max_cost_usdopt | FLOAT | 20.00–100000 | Safety cap. If the estimated cost of this run is above this many US dollars the node stops BEFORE sending anything to fal. 0 = no cap. |
| reuse_identical_runopt | BOOLEAN | true | If these exact inputs (the settings AND the same pictures/clips/audio) were already paid for and the files are still in output/fal, return them instead of paying again - also after a ComfyUI restart. Turn off for a fresh take with the same settings. |
| extra_jsonopt | STRING | Advanced: a JSON object merged into the request last, for any fal field this node has no box for. Example: {"seed": 7}. Leave empty normally. | |
| max_concurrentopt | INT | 11–32 | How many paid fal calls may run at the same time in one run, across every fal node. 1 (default) = one after another. This node starts its paid part only while fewer than this many fal calls are running. Once any fal node fails, the ones still waiting are not started, so nothing more is billed. |
Outputs (4)
| Name | Type | Description |
|---|---|---|
| images | IMAGE | — |
| image_paths | STRING | — |
| description | STRING | — |
| info | STRING | JSON: request id, cost estimate, saved files and fal's full answer. |