William LinandClaude Opus 5.5
466b0a3268
PAN 2's vLLM-Omni and Diffusers integrations check every prompt and every generated video with the `pan2-guardrail` package's PAN2SafetyChecker, on by default. FastVideo now does the same: - `PAN2PromptGuardrailStage` checks the prompt right after input validation, before any compute. It also refuses `output_type="latent"`, which the video check cannot see. - `PAN2VideoGuardrailStage` checks each decoded video after the decoding stage, as the uint8 `[T, H, W, 3]` frames the generator delivers. - A blocked prompt or video raises `PAN2GuardrailViolationError`. - `PAN2PipelineConfig.enable_guardrails` (default True) turns both checks off; `offload_guardrail_models` keeps the guard models on CPU between checks. Loading fails with install instructions when the package is missing and the guardrails are on. - With sequence parallelism, only the first rank of the SP group loads the checker and runs the checks; it broadcasts the verdict, so every rank raises together and the guard models take memory on one GPU. The parity test turns the guardrails off (random-weight checkpoint). Docs and PORT_STATUS updated. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Local Tests
Local-only parity, smoke, component, and developer-facing behavior tests for FastVideo. They cover model ports and supporting tooling and are skipped in CI; run them locally on a single GPU (or CPU where noted).
For the CI-backed test suite, see fastvideo/tests/.
Layout
Most tests are organized by model family, one directory per port. Each family directory follows this layout:
tests/local_tests/<family>/
├── README.md # reference assets, setup, test inventory
├── __init__.py
└── test_<family>_<component>_*.py
Families
| Family | Workload | Dir |
|---|---|---|
| Flux2 | T2I | flux2/ |
| GEN3C | T2V | gen3c/ |
| Kandinsky-5 | T2V | kandinsky5/ |
| Kandinsky-6 | TI2VA (T2V/I2V + audio) | kandinsky6/ |
| Kandinsky-6 SR | V2V (upscale) | kandinsky6_sr/README.md |
| LTX-2 | T2V (+ audio) | ltx2/ |
| Stable Diffusion 3.5 | T2I | sd35/ |
| Stable Audio Open 1.0 | T2A | stable_audio/ |
Wan2.2 I2V record-schema checks live in the package dataset tests.
Other Suites
| Suite | Purpose | Dir |
|---|---|---|
| Performance CI behavior | Config, comparison policy, identity, result schema, dashboard, and worker-log capture checks | performance/ |
Running a family
pytest tests/local_tests/<family>/ -v -s
See each family's README.md for setup (clones, weights, env vars, gated
tokens) and the per-component parity coverage.
Adding a new family
Follow the model porting guide to
stage the reference clone and weights, then add the family directory and its
README.md in the layout above. (In-progress ports may also keep a
PORT_STATUS.md; remove it once the port lands.)