Immutable. This exact content is served forever at /api/v1/blob/1ae10743b1f168d2.
--- name: cosmos description: Use when working on Cosmos world model serving, inference, serverless training smoke validation, backend selection, or rendering limitations. --- # Cosmos Cosmos is the world model tool for synthetic data generation and video generation. It requires a GPU. RT cores are not required for standard serving, inference, or the serverless training smoke path, unlike Isaac Lab. Cosmos visual-generation/rendering paths have the same container EGL/DRI gap as Genesis. ## Interfaces Cosmos3-specific guidance lives as agent skills, not CLI commands: - `skills/atomic/cosmos3-setup/SKILL.md` - `skills/atomic/cosmos3-codebase-nav/SKILL.md` - `skills/atomic/cosmos3-env-troubleshoot/SKILL.md` - `skills/workflows/cosmos3-inference/SKILL.md` - `skills/workflows/cosmos3-post-training/SKILL.md` API: - `POST /serve` - `POST /infer` - `POST /train` for serverless Jobs smoke validation - `GET /status` - `GET /system-info` - `GET /list` CLI: ```bash npa workbench cosmos deploy npa workbench cosmos serve npa workbench cosmos infer npa workbench cosmos train --runtime serverless --smoke npa workbench cosmos finetune npa workbench cosmos optimize npa workbench cosmos status npa workbench cosmos system-info npa workbench cosmos list ``` ## Backend Selection Use `--backend` to select one of: - `basic` - `nim` - `triton` Only `basic` is implemented today. `nim` and `triton` are exposed as enum choices but intentionally exit as not implemented. For multiple models, use named workbenches or the deploy/serve model swap pattern. ## E2E Status Cosmos is validated end-to-end on Nebius through the public CLI serverless training smoke path: ```bash npa workbench cosmos train --runtime serverless --smoke ``` W13 run `w13-cosmos-e2e-20260521T233523Z` completed on `gpu-h100-sxm` and uploaded `checkpoint.json` to S3. This closes the named Workbench tool matrix gap for an artifact-bearing Cosmos workflow. Known constraints: - `finetune` and `optimize` are placeholders. - Basic serverless endpoint inference validates endpoint/job completion, but generated endpoint outputs do not yet have a public CLI serverless-side S3 export contract. - EGL/DRI-dependent visual-generation/rendering paths remain deferred. ## Operational Safety Managed VM `deploy` defaults to in-place updates for existing aliases. Terraform plans that would destroy or replace critical infrastructure are blocked unless the operator passes `--replace` and confirms with `--yes` for automation. BYOVM deploys record `endpoint_strategy: public` or `endpoint_strategy: ssh_fallback` in `~/.npa/config.yaml`. Live `status`, `serve`, and `infer` commands honor that strategy and self-heal blocked public endpoints through a transient SSH-local route.