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ollama/docs/api.md
Matt Williams f21bd6210d docs: clarify and clean up API docs 
Signed-off-by: Matt Williams <m@technovangelist.com>
2023-10-31 13:11:33 -07:00

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API

Endpoints

Conventions

Model names

Model names follow a model:tag format. Some examples are orca-mini:3b-q4_1 and llama2:70b. The tag is optional and, if not provided, will default to latest. The tag is used to identify a specific version.

Durations

All durations are returned in nanoseconds.

Streaming responses

Certain endpoints stream responses as JSON objects delineated with the newline (\n) character.

Generate a completion

POST /api/generate

Generate a response for a given prompt with a provided model. This is a streaming endpoint, so will be a series of responses. The final response object will include statistics and additional data from the request.

Parameters

  • model: (required) the model name
  • prompt: the prompt to generate a response for

Advanced parameters (optional):

  • options: additional model parameters listed in the documentation for the Modelfile such as temperature
  • system: system prompt to (overrides what is defined in the Modelfile)
  • template: the full prompt or prompt template (overrides what is defined in the Modelfile)
  • context: the context parameter returned from a previous request to /generate, this can be used to keep a short conversational memory
  • stream: if false the response will be returned as a single response object, rather than a stream of objects

Request

curl -X POST http://localhost:11434/api/generate -d '{
  "model": "llama2:7b",
  "prompt": "Why is the sky blue?"
}'

Response

If stream is not specified, or set to true, a stream of JSON objects is returned:

{
  "model": "llama2:7b",
  "created_at": "2023-08-04T08:52:19.385406455-07:00",
  "response": "The",
  "done": false
}

The final response in the stream also includes additional data about the generation:

  • total_duration: time spent generating the response
  • load_duration: time spent in nanoseconds loading the model
  • sample_count: number of samples generated
  • sample_duration: time spent generating samples
  • prompt_eval_count: number of tokens in the prompt
  • prompt_eval_duration: time spent in nanoseconds evaluating the prompt
  • eval_count: number of tokens the response
  • eval_duration: time in nanoseconds spent generating the response
  • context: an encoding of the conversation used in this response, this can be sent in the next request to keep a conversational memory
  • response: empty if the response was streamed, if not streamed, this will contain the full response

To calculate how fast the response is generated in tokens per second (token/s), divide eval_count / eval_duration.

{
  "model": "llama2:7b",
  "created_at": "2023-08-04T19:22:45.499127Z",
  "response": "",
  "context": [1, 2, 3],
  "done": true,
  "total_duration": 5589157167,
  "load_duration": 3013701500,
  "sample_count": 114,
  "sample_duration": 81442000,
  "prompt_eval_count": 46,
  "prompt_eval_duration": 1160282000,
  "eval_count": 113,
  "eval_duration": 1325948000
}

If stream is set to false, the response will be a single JSON object:

{
  "model": "llama2:7b",
  "created_at": "2023-08-04T19:22:45.499127Z",
  "response": "The sky is blue because it is the color of the sky.",
  "context": [1, 2, 3],
  "done": true,
  "total_duration": 5589157167,
  "load_duration": 3013701500,
  "sample_count": 114,
  "sample_duration": 81442000,
  "prompt_eval_count": 46,
  "prompt_eval_duration": 1160282000,
  "eval_count": 13,
  "eval_duration": 1325948000
}

Create a Model

POST /api/create

Create a model from a Modelfile

Parameters

  • name: name of the model to create
  • path: path to the Modelfile
  • stream: (optional) if false the response will be returned as a single response object, rather than a stream of objects

Request

curl -X POST http://localhost:11434/api/create -d '{
  "name": "mario",
  "path": "~/Modelfile"
}'

Response

A stream of JSON objects. When finished, status is success.

{
  "status": "parsing modelfile"
}

List Local Models

GET /api/tags

List models that are available locally.

Request

curl http://localhost:11434/api/tags

Response

A single JSON object will be returned.

{
  "models": [
    {
      "name": "llama2:7b",
      "modified_at": "2023-08-02T17:02:23.713454393-07:00",
      "size": 3791730596
    },
    {
      "name": "llama2:13b",
      "modified_at": "2023-08-08T12:08:38.093596297-07:00",
      "size": 7323310500
    }
  ]
}

Show Model Information

POST /api/show

Show details about a model including modelfile, template, parameters, license, and system prompt.

Parameters

  • name: name of the model to show

Request

curl http://localhost:11434/api/show -d '{
  "name": "llama2:7b"
}'

Response

{
  "license": "<contents of license block>",
  "modelfile": "# Modelfile generated by \"ollama show\"\n# To build a new Modelfile based on this one, replace the FROM line with:\n# FROM llama2:latest\n\nFROM /Users/username/.ollama/models/blobs/sha256:8daa9615cce30c259a9555b1cc250d461d1bc69980a274b44d7eda0be78076d8\nTEMPLATE \"\"\"[INST] {{ if and .First .System }}<<SYS>>{{ .System }}<</SYS>>\n\n{{ end }}{{ .Prompt }} [/INST] \"\"\"\nSYSTEM \"\"\"\"\"\"\nPARAMETER stop [INST]\nPARAMETER stop [/INST]\nPARAMETER stop <<SYS>>\nPARAMETER stop <</SYS>>\n",
  "parameters": "stop                           [INST]\nstop                           [/INST]\nstop                           <<SYS>>\nstop                           <</SYS>>",
  "template": "[INST] {{ if and .First .System }}<<SYS>>{{ .System }}<</SYS>>\n\n{{ end }}{{ .Prompt }} [/INST] "
}

Copy a Model

POST /api/copy

Copy a model. Creates a model with another name from an existing model.

Request

curl http://localhost:11434/api/copy -d '{
  "source": "llama2:7b",
  "destination": "llama2-backup"
}'

Response

The only response is a 200 OK if successful.

Delete a Model

DELETE /api/delete

Delete a model and its data.

Parameters

  • name: model name to delete

Request

curl -X DELETE http://localhost:11434/api/delete -d '{
  "name": "llama2:13b"
}'

Response

If successful, the only response is a 200 OK.

Pull a Model

POST /api/pull

Download a model from the ollama library. Cancelled pulls are resumed from where they left off, and multiple calls will share the same download progress.

Parameters

  • name: name of the model to pull
  • insecure: (optional) allow insecure connections to the library. Only use this if you are pulling from your own library during development.
  • stream: (optional) if false the response will be returned as a single response object, rather than a stream of objects

Request

curl -X POST http://localhost:11434/api/pull -d '{
  "name": "llama2:7b"
}'

Response

If stream is not specified, or set to true, a stream of JSON objects is returned:

The first object is the manifest:

{
  "status": "pulling manifest"
}

Then there is a series of downloading responses. Until any of the download is completed, the completed key may not be included. The number of files to be downloaded depends on the number of layers specified in the manifest.

{
  "status": "downloading digestname",
  "digest": "digestname",
  "total": 2142590208, 
  "completed": 241970
}

After all the files are downloaded, the final responses are:

{
    "status": "verifying sha256 digest"
}
{
    "status": "writing manifest"
}
{
    "status": "removing any unused layers"
}
{
    "status": "success"
}

if stream is set to false, then the response is a single JSON object:

{
  "status": "success"
}

Push a Model

POST /api/push

Upload a model to a model library. Requires registering for ollama.ai and adding a public key first.

Parameters

  • name: name of the model to push in the form of <namespace>/<model>:<tag>
  • insecure: (optional) allow insecure connections to the library. Only use this if you are pushing to your library during development.
  • stream: (optional) if false the response will be returned as a single response object, rather than a stream of objects

Request

curl -X POST http://localhost:11434/api/push -d '{
  "name": "mattw/pygmalion:latest"
}'

Response

If stream is not specified, or set to true, a stream of JSON objects is returned:

{ "status": "retrieving manifest" }

and then:

{
  "status": "starting upload",
  "digest": "sha256:bc07c81de745696fdf5afca05e065818a8149fb0c77266fb584d9b2cba3711ab",
  "total": 1928429856
}

Then there is a series of uploading responses:

{
  "status": "starting upload",
  "digest": "sha256:bc07c81de745696fdf5afca05e065818a8149fb0c77266fb584d9b2cba3711ab",
  "total": 1928429856
}

Finally, when the upload is complete:

{"status":"pushing manifest"}
{"status":"success"}

If stream is set to false, then the response is a single JSON object:

{"status":"success"}

Generate Embeddings

POST /api/embeddings

Generate embeddings from a model

Parameters

  • model: name of model to generate embeddings from
  • prompt: text to generate embeddings for

Advanced parameters:

  • options: additional model parameters listed in the documentation for the Modelfile such as temperature

Request

curl -X POST http://localhost:11434/api/embeddings -d '{
  "model": "llama2:7b",
  "prompt": "Here is an article about llamas..."
}'

Response

{
  "embedding": [
    0.5670403838157654, 0.009260174818336964, 0.23178744316101074, -0.2916173040866852, -0.8924556970596313,
    0.8785552978515625, -0.34576427936553955, 0.5742510557174683, -0.04222835972905159, -0.137906014919281
  ]
}