Experimental multimodal model focused on reasoning, creative writing, roleplay, and agentic workflows. Available temporarily for evaluation ahead of public release. During this evaluation, prompts and responses are logged and may be reviewed to evaluate and improve the model. Do not send sensitive or confidential information.
Lumen Stealth by nano is currently listed from a single provider. Its reference price is $0.05 per 1M input tokens and $0 per 1M output tokens.
The context window is 200,000 tokens, with an output limit of 16,000 tokens. It supports reasoning. Accepted input modalities are Text and Image.
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| NanoGPT | Gateway | $0.05 | $0 | — | — | 200,000 | 16,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
1 / 1 providers expose no reasoning control (reasoning_options: []).
Price history accumulates from each data sync; currently only 1 sample(s) (2026-09-23). Each future sync adds a point, and once accumulated a line is drawn here.