Save sampler weights

POST

https://api.fastino.ai

training

jobs

{job_id}

save-weights-for-sampler

curl -X POST "https://api.fastino.ai/v1/training/jobs/$TRAINING_JOB_ID/save-weights-for-sampler" \
  -H "X-API-Key: $FASTINO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name": "step-000100", "ttl_seconds": 86400}'

{
  "future_id": "FUTURE_ID",
  "job_id": "SESSION_ID:train:0",
  "type": "save",
  "checkpoint_id": "sampler_weights/step-000100",
  "path": "tinker://SESSION_ID:train:0/sampler_weights/step-000100"
}

POST /v1/training/jobs/{job_id}/save-weights-for-sampler Saves the job’s LoRA weights as sampler_weights/<name>. You can sample from it, also after the job is stopped, or download it as PEFT LoRA files. It has no optimizer state, so a job can’t load it or start from it; use POST /v1/training/jobs/{job_id}/save-weights for that. The save runs in order with the job’s other calls.

Request

string

required

Your Fastino API key.

string

required

Interactive job ID.

string

required

1–128 characters from A-Z, a-z, 0-9, ., _, and -.

integer | null

Delete the checkpoint automatically after this many seconds, from 3600 (1 hour) to 315360000 (10 years). Omit it to keep the checkpoint until you delete it. Live checkpoints count toward storage usage.

object

String key-value metadata stored with the checkpoint.

curl -X POST "https://api.fastino.ai/v1/training/jobs/$TRAINING_JOB_ID/save-weights-for-sampler" \
  -H "X-API-Key: $FASTINO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name": "step-000100", "ttl_seconds": 86400}'

Response

string

The save future.

string

sampler_weights/<name>.

string

Full checkpoint path.

{
  "future_id": "FUTURE_ID",
  "job_id": "SESSION_ID:train:0",
  "type": "save",
  "checkpoint_id": "sampler_weights/step-000100",
  "path": "tinker://SESSION_ID:train:0/sampler_weights/step-000100"
}

Status	Meaning
`400`	The name has invalid characters or length, the TTL is out of range, or the job was stopped.
`404`	The job doesn’t exist or belongs to another team.
`422`	The body is missing `name` or has an unknown field.

⌘I

curl -X POST "https://api.fastino.ai/v1/training/jobs/$TRAINING_JOB_ID/save-weights-for-sampler" \
  -H "X-API-Key: $FASTINO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name": "step-000100", "ttl_seconds": 86400}'

{
  "future_id": "FUTURE_ID",
  "job_id": "SESSION_ID:train:0",
  "type": "save",
  "checkpoint_id": "sampler_weights/step-000100",
  "path": "tinker://SESSION_ID:train:0/sampler_weights/step-000100"
}

Inference

Training

Request

Response

​Request

​Response

Request

Response