Merge branch 'master' into feat/debugenv

.dockerignore

@@ -1,3 +1,5 @@
+.git
+.idea
 models
 examples/chatbot-ui/models
 examples/rwkv/models

.github/workflows/image.yml

@@ -15,34 +15,42 @@ concurrency:
 
 jobs:
   docker:
+    strategy:
+      matrix:
+        include:
+          - build-type: ''
+            platforms: 'linux/amd64,linux/arm64'
+            tag-latest: 'auto'
+            tag-suffix: ''
+          - build-type: 'cublas'
+            cuda-major-version: 11
+            cuda-minor-version: 7
+            platforms: 'linux/amd64'
+            tag-latest: 'false'
+            tag-suffix: '-cublas-cuda11'
+          - build-type: 'cublas'
+            cuda-major-version: 12
+            cuda-minor-version: 1
+            platforms: 'linux/amd64'
+            tag-latest: 'false'
+            tag-suffix: '-cublas-cuda12'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v3
 
-      - name: Prepare
+      - name: Docker meta
-        id: prep
+        id: meta
-        run: |
+        uses: docker/metadata-action@v4
-          DOCKER_IMAGE=quay.io/go-skynet/local-ai
+        with:
-          VERSION=master
+          images: quay.io/go-skynet/local-ai
-          SHORTREF=${GITHUB_SHA::8}
+          tags: |
-
+            type=ref,event=branch
-          # If this is git tag, use the tag name as a docker tag
+            type=semver,pattern={{raw}}
-          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            type=sha
-            VERSION=${GITHUB_REF#refs/tags/}
+          flavor: |
-          fi
+            latest=${{ matrix.tag-latest }}
-          TAGS="${DOCKER_IMAGE}:${VERSION},${DOCKER_IMAGE}:${SHORTREF}"
+            suffix=${{ matrix.tag-suffix }}
-
-          # If the VERSION looks like a version number, assume that
-          # this is the most recent version of the image and also
-          # tag it 'latest'.
-          if [[ $VERSION =~ ^v[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
-            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
-          fi
-
-          # Set output parameters.
-          echo ::set-output name=tags::${TAGS}
-          echo ::set-output name=docker_image::${DOCKER_IMAGE}
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@master
@@ -60,23 +68,18 @@ jobs:
           registry: quay.io
           username: ${{ secrets.LOCALAI_REGISTRY_USERNAME }}
           password: ${{ secrets.LOCALAI_REGISTRY_PASSWORD }}
-      - name: Build
+
-        if: github.event_name != 'pull_request'
+      - name: Build and push
         uses: docker/build-push-action@v4
         with:
           builder: ${{ steps.buildx.outputs.name }}
+          build-args: |
+            BUILD_TYPE=${{ matrix.build-type }}
+            CUDA_MAJOR_VERSION=${{ matrix.cuda-major-version }}
+            CUDA_MINOR_VERSION=${{ matrix.cuda-minor-version }}
           context: .
           file: ./Dockerfile
-          platforms: linux/amd64,linux/arm64
+          platforms: ${{ matrix.platforms }}
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.prep.outputs.tags }}
+          tags: ${{ steps.meta.outputs.tags }}
-      - name: Build PRs
+          labels: ${{ steps.meta.outputs.labels }}
-        if: github.event_name == 'pull_request'
-        uses: docker/build-push-action@v4
-        with:
-          builder: ${{ steps.buildx.outputs.name }}
-          context: .
-          file: ./Dockerfile
-          platforms: linux/amd64
-          push: false
-          tags: ${{ steps.prep.outputs.tags }}

.gitignore

@@ -24,3 +24,4 @@ release/
 
 # just in case
 .DS_Store
+.idea

Makefile

@@ -3,13 +3,13 @@ GOTEST=$(GOCMD) test
 GOVET=$(GOCMD) vet
 BINARY_NAME=local-ai
 
-GOLLAMA_VERSION?=62b6c079a47d6949c982ed8e684b94bdbf48b41c
+GOLLAMA_VERSION?=10caf37d8b73386708b4373975b8917e6b212c0e
 GPT4ALL_REPO?=https://github.com/nomic-ai/gpt4all
 GPT4ALL_VERSION?=337c7fecacfa4ae6779046513ab090687a5b0ef6
 GOGGMLTRANSFORMERS_VERSION?=13ccc22621bb21afecd38675a2b043498e2e756c
 RWKV_REPO?=https://github.com/donomii/go-rwkv.cpp
 RWKV_VERSION?=ccb05c3e1c6efd098017d114dcb58ab3262b40b2
-WHISPER_CPP_VERSION?=d7c936b44a80b8070676093fc00622333ba09cd3
+WHISPER_CPP_VERSION?=ce6f7470649f169027626dc92b3a2e39b4eff463
 BERT_VERSION?=771b4a08597224b21cff070950ef4f68690e14ad
 BLOOMZ_VERSION?=1834e77b83faafe912ad4092ccf7f77937349e2f
 BUILD_TYPE?=

README.md

@@ -28,7 +28,7 @@ LocalAI was created by [Ettore Di Giacinto](https://github.com/mudler/) and is a
 |  ![Screenshot from 2023-04-26 23-59-55](https://user-images.githubusercontent.com/2420543/234715439-98d12e03-d3ce-4f94-ab54-2b256808e05e.png)            | ![b6441997879](https://github.com/go-skynet/LocalAI/assets/2420543/d50af51c-51b7-4f39-b6c2-bf04c403894c)                  |
 
 
-See the [Getting started](https://localai.io/basics/getting_started/index.html) and [examples](https://github.com/go-skynet/LocalAI/tree/master/examples/) sections to learn how to use LocalAI. For a list of curated models check out the [model gallery](https://github.com/go-skynet/model-gallery).
+See the [Getting started](https://localai.io/basics/getting_started/index.html) and [examples](https://github.com/go-skynet/LocalAI/tree/master/examples/) sections to learn how to use LocalAI. For a list of curated models check out the [model gallery](https://localai.io/models/).
 
 ## News
 

api/prediction.go

@@ -9,6 +9,7 @@ import (
 	"sync"
 
 	"github.com/donomii/go-rwkv.cpp"
+	"github.com/go-skynet/LocalAI/pkg/langchain"
 	model "github.com/go-skynet/LocalAI/pkg/model"
 	"github.com/go-skynet/LocalAI/pkg/stablediffusion"
 	"github.com/go-skynet/bloomz.cpp"
@@ -494,6 +495,23 @@ func ModelInference(s string, loader *model.ModelLoader, c Config, tokenCallback
 			model.SetTokenCallback(nil)
 			return str, er
 		}
+	case *langchain.HuggingFace:
+		fn = func() (string, error) {
+
+			// Generate the prediction using the language model
+			predictOptions := []langchain.PredictOption{
+				langchain.SetModel(c.Model),
+				langchain.SetMaxTokens(c.Maxtokens),
+				langchain.SetTemperature(c.Temperature),
+				langchain.SetStopWords(c.StopWords),
+			}
+
+			pred, er := model.PredictHuggingFace(s, predictOptions...)
+			if er != nil {
+				return "", er
+			}
+			return pred.Completion, nil
+		}
 	}
 
 	return func() (string, error) {

examples/langchain-huggingface/README.md

@@ -0,0 +1,68 @@
+# Data query example
+
+Example of integration with HuggingFace Inference API with help of [langchaingo](https://github.com/tmc/langchaingo).
+
+## Setup
+
+Download the LocalAI and start the API:
+
+```bash
+# Clone LocalAI
+git clone https://github.com/go-skynet/LocalAI
+
+cd LocalAI/examples/langchain-huggingface
+
+docker-compose up -d
+```
+
+Node: Ensure you've set `HUGGINGFACEHUB_API_TOKEN` environment variable, you can generate it
+on [Settings / Access Tokens](https://huggingface.co/settings/tokens) page of HuggingFace site.
+
+This is an example `.env` file for LocalAI:
+
+```ini
+MODELS_PATH=/models
+CONTEXT_SIZE=512
+HUGGINGFACEHUB_API_TOKEN=hg_123456
+```
+
+## Using remote models
+
+Now you can use any remote models available via HuggingFace API, for example let's enable using of
+[gpt2](https://huggingface.co/gpt2) model in `gpt-3.5-turbo.yaml` config:
+
+```yml
+name: gpt-3.5-turbo
+parameters:
+  model: gpt2
+  top_k: 80
+  temperature: 0.2
+  top_p: 0.7
+context_size: 1024
+backend: "langchain-huggingface"
+stopwords:
+- "HUMAN:"
+- "GPT:"
+roles:
+  user: " "
+  system: " "
+template:
+  completion: completion
+  chat: gpt4all
+```
+
+Here is you can see in field `parameters.model` equal `gpt2` and `backend` equal `langchain-huggingface`.
+
+## How to use
+
+```shell
+# Now API is accessible at localhost:8080
+curl http://localhost:8080/v1/models
+# {"object":"list","data":[{"id":"gpt-3.5-turbo","object":"model"}]}
+
+curl http://localhost:8080/v1/completions -H "Content-Type: application/json" -d '{
+  "model": "gpt-3.5-turbo",
+  "prompt": "A long time ago in a galaxy far, far away",
+  "temperature": 0.7
+}'
+```

examples/langchain-huggingface/docker-compose.yml

@@ -0,0 +1,15 @@
+version: '3.6'
+
+services:
+  api:
+    image: quay.io/go-skynet/local-ai:latest
+    build:
+      context: ../../
+      dockerfile: Dockerfile
+    ports:
+      - 8080:8080
+    env_file:
+      - ../../.env
+    volumes:
+      - ./models:/models:cached
+    command: ["/usr/bin/local-ai"]

examples/langchain-huggingface/models/completion.tmpl

@@ -0,0 +1 @@
+{{.Input}}

examples/langchain-huggingface/models/gpt-3.5-turbo.yaml

@@ -0,0 +1,17 @@
+name: gpt-3.5-turbo
+parameters:
+  model: gpt2
+  top_k: 80
+  temperature: 0.2
+  top_p: 0.7
+context_size: 1024
+backend: "langchain-huggingface"
+stopwords:
+- "HUMAN:"
+- "GPT:"
+roles:
+  user: " "
+  system: " "
+template:
+  completion: completion
+  chat: gpt4all

examples/langchain-huggingface/models/gpt4all.tmpl

@@ -0,0 +1,4 @@
+The prompt below is a question to answer, a task to complete, or a conversation to respond to; decide which and write an appropriate response.
+### Prompt:
+{{.Input}}
+### Response:

go.mod

@@ -3,20 +3,20 @@ module github.com/go-skynet/LocalAI
 go 1.19
 
 require (
-	github.com/donomii/go-rwkv.cpp v0.0.0-20230529074347-ccb05c3e1c6e
+	github.com/donomii/go-rwkv.cpp v0.0.0-20230531084548-c43cdf5fc5bf
-	github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230528233858-d7c936b44a80
+	github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230601065548-3f7436e8a096
 	github.com/go-audio/wav v1.1.0
 	github.com/go-skynet/bloomz.cpp v0.0.0-20230510223001-e9366e82abdf
 	github.com/go-skynet/go-bert.cpp v0.0.0-20230529074307-771b4a085972
-	github.com/go-skynet/go-ggml-transformers.cpp v0.0.0-20230529215936-13ccc22621bb
+	github.com/go-skynet/go-ggml-transformers.cpp v0.0.0-20230531065233-17b065584ef8
-	github.com/go-skynet/go-llama.cpp v0.0.0-20230530191504-62b6c079a47d
+	github.com/go-skynet/go-llama.cpp v0.0.0-20230531065249-10caf37d8b73
 	github.com/gofiber/fiber/v2 v2.46.0
 	github.com/google/uuid v1.3.0
 	github.com/hashicorp/go-multierror v1.1.1
 	github.com/imdario/mergo v0.3.16
 	github.com/mudler/go-stable-diffusion v0.0.0-20230516152536-c0748eca3642
-	github.com/nomic-ai/gpt4all/gpt4all-bindings/golang v0.0.0-20230528235700-9eb81cb54922
+	github.com/nomic-ai/gpt4all/gpt4all-bindings/golang v0.0.0-20230531011104-5f940208e4f5
-	github.com/onsi/ginkgo/v2 v2.9.5
+	github.com/onsi/ginkgo/v2 v2.9.7
 	github.com/onsi/gomega v1.27.7
 	github.com/otiai10/openaigo v1.1.0
 	github.com/rs/zerolog v1.29.1
@@ -59,6 +59,7 @@ require (
 	github.com/savsgio/dictpool v0.0.0-20221023140959-7bf2e61cea94 // indirect
 	github.com/savsgio/gotils v0.0.0-20230208104028-c358bd845dee // indirect
 	github.com/tinylib/msgp v1.1.8 // indirect
+	github.com/tmc/langchaingo v0.0.0-20230530193922-fb062652f841 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/tcplisten v1.0.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect

go.sum

@@ -20,6 +20,8 @@ github.com/donomii/go-rwkv.cpp v0.0.0-20230515123100-6fdd0c338e56 h1:s8/MZdicstK
 github.com/donomii/go-rwkv.cpp v0.0.0-20230515123100-6fdd0c338e56/go.mod h1:gWy7FIWioqYmYxkaoFyBnaKApeZVrUkHhv9EV9pz4dM=
 github.com/donomii/go-rwkv.cpp v0.0.0-20230529074347-ccb05c3e1c6e h1:YbcLoxAwS0r7otEqU/d8bArubmfEJaG7dZPp0Aa52Io=
 github.com/donomii/go-rwkv.cpp v0.0.0-20230529074347-ccb05c3e1c6e/go.mod h1:gWy7FIWioqYmYxkaoFyBnaKApeZVrUkHhv9EV9pz4dM=
+github.com/donomii/go-rwkv.cpp v0.0.0-20230531084548-c43cdf5fc5bf h1:upCz8WYdzMeJg0qywUaVaGndY+niuicj5j6V4pvhNS4=
+github.com/donomii/go-rwkv.cpp v0.0.0-20230531084548-c43cdf5fc5bf/go.mod h1:gWy7FIWioqYmYxkaoFyBnaKApeZVrUkHhv9EV9pz4dM=
 github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230520182345-041be06d5881 h1:dafqVivljYk51VLFnnpTXJnfWDe637EobWZ1l8PyEf8=
 github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230520182345-041be06d5881/go.mod h1:QIjZ9OktHFG7p+/m3sMvrAJKKdWrr1fZIK0rM6HZlyo=
 github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230523110439-77eab3fbfe5e h1:4PMorQuoUGAXmIzCtnNOHaasyLokXdgd8jUWwsraFTo=
@@ -30,6 +32,10 @@ github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230527074028-9b926844e3ae
 github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230527074028-9b926844e3ae/go.mod h1:QIjZ9OktHFG7p+/m3sMvrAJKKdWrr1fZIK0rM6HZlyo=
 github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230528233858-d7c936b44a80 h1:IeeVcNaQHdcG+GPg+meOPFvtonvO8p/HBzTrZGjpWZk=
 github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230528233858-d7c936b44a80/go.mod h1:QIjZ9OktHFG7p+/m3sMvrAJKKdWrr1fZIK0rM6HZlyo=
+github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230531071314-ce6f7470649f h1:oGTI2SlcA7oGPFsmkS1m8psq3uKNnhhJ/MZ2ZWVZDe0=
+github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230531071314-ce6f7470649f/go.mod h1:QIjZ9OktHFG7p+/m3sMvrAJKKdWrr1fZIK0rM6HZlyo=
+github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230601065548-3f7436e8a096 h1:TD7v8FnwWCWlOsrkpnumsbxsflyhTI3rSm2HInqqSAI=
+github.com/ggerganov/whisper.cpp/bindings/go v0.0.0-20230601065548-3f7436e8a096/go.mod h1:QIjZ9OktHFG7p+/m3sMvrAJKKdWrr1fZIK0rM6HZlyo=
 github.com/go-audio/audio v1.0.0 h1:zS9vebldgbQqktK4H0lUqWrG8P0NxCJVqcj7ZpNnwd4=
 github.com/go-audio/audio v1.0.0/go.mod h1:6uAu0+H2lHkwdGsAY+j2wHPNPpPoeg5AaEFh9FlA+Zs=
 github.com/go-audio/riff v1.0.0 h1:d8iCGbDvox9BfLagY94fBynxSPHO80LmZCaOsmKxokA=
@@ -64,6 +70,8 @@ github.com/go-skynet/go-ggml-transformers.cpp v0.0.0-20230529072326-695f97befe14
 github.com/go-skynet/go-ggml-transformers.cpp v0.0.0-20230529072326-695f97befe14/go.mod h1:Rz967+t+aY6S+TBiW/WI8FM/C1WEMM+DamSMtKRxVAM=
 github.com/go-skynet/go-ggml-transformers.cpp v0.0.0-20230529215936-13ccc22621bb h1:slNlMT8xB6w0QaMroTsqkNzNovUOEkpNpCawB7IjBFY=
 github.com/go-skynet/go-ggml-transformers.cpp v0.0.0-20230529215936-13ccc22621bb/go.mod h1:SI+oF2+THMydq8Vo4+EzKJaQwtfWOy+lr7yWPP6FR2U=
+github.com/go-skynet/go-ggml-transformers.cpp v0.0.0-20230531065233-17b065584ef8 h1:LK1DAgJsNMRUWaPpFOnE8XSF70UBybr3zGOvzP8Pdok=
+github.com/go-skynet/go-ggml-transformers.cpp v0.0.0-20230531065233-17b065584ef8/go.mod h1:/JbU8HZU+tUOp+1bQAeXf3AyRXm+p3UwhccoJwCTI9A=
 github.com/go-skynet/go-gpt2.cpp v0.0.0-20230523153133-3eb3a32c0874 h1:/6QWh2oarU7iPSpXj/3bLlkKptyxjKTRrNtGUrh8vhI=
 github.com/go-skynet/go-gpt2.cpp v0.0.0-20230523153133-3eb3a32c0874/go.mod h1:1Wj/xbkMfwQSOrhNYK178IzqQHstZbRfhx4s8p1M5VM=
 github.com/go-skynet/go-llama.cpp v0.0.0-20230520155239-ccf23adfb278 h1:st4ow9JKy3UuhkwutrbWof2vMFU/YxwBCLYZ1IxJ2Po=
@@ -78,6 +86,8 @@ github.com/go-skynet/go-llama.cpp v0.0.0-20230529221033-4afcaf28f36f h1:HmXiNF9S
 github.com/go-skynet/go-llama.cpp v0.0.0-20230529221033-4afcaf28f36f/go.mod h1:oA0r4BW8ndyjTMGi1tulsNd7sdg3Ql8MaVFuT1zF6ws=
 github.com/go-skynet/go-llama.cpp v0.0.0-20230530191504-62b6c079a47d h1:daPcVEptc/6arcS/QV4QDCdYiwMGCiiR5rnzUs63WK0=
 github.com/go-skynet/go-llama.cpp v0.0.0-20230530191504-62b6c079a47d/go.mod h1:oA0r4BW8ndyjTMGi1tulsNd7sdg3Ql8MaVFuT1zF6ws=
+github.com/go-skynet/go-llama.cpp v0.0.0-20230531065249-10caf37d8b73 h1:swwsrYpPYOsyGFrX/0nhaYa93aHH6I61HpSJpQkN1tY=
+github.com/go-skynet/go-llama.cpp v0.0.0-20230531065249-10caf37d8b73/go.mod h1:ddYIvPZyj3Vf4XkfZimVRRehZu2isd0JXfK3EemVQPk=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
@@ -139,8 +149,12 @@ github.com/nomic-ai/gpt4all/gpt4all-bindings/golang v0.0.0-20230526132403-a6f3e9
 github.com/nomic-ai/gpt4all/gpt4all-bindings/golang v0.0.0-20230526132403-a6f3e94458e2/go.mod h1:4T3CHXyrt+7FQHXaxULZfPjHbD8/99WuDDJa0YVZARI=
 github.com/nomic-ai/gpt4all/gpt4all-bindings/golang v0.0.0-20230528235700-9eb81cb54922 h1:teYhrXxFY28gyBm6QMcYewA0KvLXqkUsgxJcYelaxbg=
 github.com/nomic-ai/gpt4all/gpt4all-bindings/golang v0.0.0-20230528235700-9eb81cb54922/go.mod h1:4T3CHXyrt+7FQHXaxULZfPjHbD8/99WuDDJa0YVZARI=
+github.com/nomic-ai/gpt4all/gpt4all-bindings/golang v0.0.0-20230531011104-5f940208e4f5 h1:99cF+V5wk7IInDAEM9HAlSHdLf/xoJR529Wr8lAG5KQ=
+github.com/nomic-ai/gpt4all/gpt4all-bindings/golang v0.0.0-20230531011104-5f940208e4f5/go.mod h1:4T3CHXyrt+7FQHXaxULZfPjHbD8/99WuDDJa0YVZARI=
 github.com/onsi/ginkgo/v2 v2.9.5 h1:+6Hr4uxzP4XIUyAkg61dWBw8lb/gc4/X5luuxN/EC+Q=
 github.com/onsi/ginkgo/v2 v2.9.5/go.mod h1:tvAoo1QUJwNEU2ITftXTpR7R1RbCzoZUOs3RonqW57k=
+github.com/onsi/ginkgo/v2 v2.9.7 h1:06xGQy5www2oN160RtEZoTvnP2sPhEfePYmCDc2szss=
+github.com/onsi/ginkgo/v2 v2.9.7/go.mod h1:cxrmXWykAwTwhQsJOPfdIDiJ+l2RYq7U8hFU+M/1uw0=
 github.com/onsi/gomega v1.27.7 h1:fVih9JD6ogIiHUN6ePK7HJidyEDpWGVB5mzM7cWNXoU=
 github.com/onsi/gomega v1.27.7/go.mod h1:1p8OOlwo2iUUDsHnOrjE5UKYJ+e3W8eQ3qSlRahPmr4=
 github.com/otiai10/mint v1.5.1 h1:XaPLeE+9vGbuyEHem1JNk3bYc7KKqyI/na0/mLd/Kks=
@@ -178,6 +192,8 @@ github.com/swaggo/swag v1.16.1/go.mod h1:9/LMvHycG3NFHfR6LwvikHv5iFvmPADQ359cKik
 github.com/tinylib/msgp v1.1.6/go.mod h1:75BAfg2hauQhs3qedfdDZmWAPcFMAvJE5b9rGOMufyw=
 github.com/tinylib/msgp v1.1.8 h1:FCXC1xanKO4I8plpHGH2P7koL/RzZs12l/+r7vakfm0=
 github.com/tinylib/msgp v1.1.8/go.mod h1:qkpG+2ldGg4xRFmx+jfTvZPxfGFhi64BcnL9vkCm/Tw=
+github.com/tmc/langchaingo v0.0.0-20230530193922-fb062652f841 h1:IVlfKPZzq3W1G+CkhZgN5VjmHnAeB3YqEvxyNPPCZXY=
+github.com/tmc/langchaingo v0.0.0-20230530193922-fb062652f841/go.mod h1:6l1WoyqVDwkv7cFlY3gfcTv8yVowVyuutKv8PGlQCWI=
 github.com/urfave/cli/v2 v2.25.3 h1:VJkt6wvEBOoSjPFQvOkv6iWIrsJyCrKGtCtxXWwmGeY=
 github.com/urfave/cli/v2 v2.25.3/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6fmdJLxc=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=

pkg/langchain/huggingface.go

@@ -0,0 +1,47 @@
+package langchain
+
+import (
+	"context"
+
+	"github.com/tmc/langchaingo/llms"
+	"github.com/tmc/langchaingo/llms/huggingface"
+)
+
+type HuggingFace struct {
+	modelPath string
+}
+
+func NewHuggingFace(repoId string) (*HuggingFace, error) {
+	return &HuggingFace{
+		modelPath: repoId,
+	}, nil
+}
+
+func (s *HuggingFace) PredictHuggingFace(text string, opts ...PredictOption) (*Predict, error) {
+	po := NewPredictOptions(opts...)
+
+	// Init client
+	llm, err := huggingface.New()
+	if err != nil {
+		return nil, err
+	}
+
+	// Convert from LocalAI to LangChainGo format of options
+	co := []llms.CallOption{
+		llms.WithModel(po.Model),
+		llms.WithMaxTokens(po.MaxTokens),
+		llms.WithTemperature(po.Temperature),
+		llms.WithStopWords(po.StopWords),
+	}
+
+	// Call Inference API
+	ctx := context.Background()
+	completion, err := llm.Call(ctx, text, co...)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Predict{
+		Completion: completion,
+	}, nil
+}

pkg/langchain/langchain.go

@@ -0,0 +1,57 @@
+package langchain
+
+type PredictOptions struct {
+	Model string `json:"model"`
+	// MaxTokens is the maximum number of tokens to generate.
+	MaxTokens int `json:"max_tokens"`
+	// Temperature is the temperature for sampling, between 0 and 1.
+	Temperature float64 `json:"temperature"`
+	// StopWords is a list of words to stop on.
+	StopWords []string `json:"stop_words"`
+}
+
+type PredictOption func(p *PredictOptions)
+
+var DefaultOptions = PredictOptions{
+	Model:       "gpt2",
+	MaxTokens:   200,
+	Temperature: 0.96,
+	StopWords:   nil,
+}
+
+type Predict struct {
+	Completion string
+}
+
+func SetModel(model string) PredictOption {
+	return func(o *PredictOptions) {
+		o.Model = model
+	}
+}
+
+func SetTemperature(temperature float64) PredictOption {
+	return func(o *PredictOptions) {
+		o.Temperature = temperature
+	}
+}
+
+func SetMaxTokens(maxTokens int) PredictOption {
+	return func(o *PredictOptions) {
+		o.MaxTokens = maxTokens
+	}
+}
+
+func SetStopWords(stopWords []string) PredictOption {
+	return func(o *PredictOptions) {
+		o.StopWords = stopWords
+	}
+}
+
+// NewPredictOptions Create a new PredictOptions object with the given options.
+func NewPredictOptions(opts ...PredictOption) PredictOptions {
+	p := DefaultOptions
+	for _, opt := range opts {
+		opt(&p)
+	}
+	return p
+}

pkg/model/initializers.go

@@ -7,6 +7,7 @@ import (
 
 	rwkv "github.com/donomii/go-rwkv.cpp"
 	whisper "github.com/ggerganov/whisper.cpp/bindings/go/pkg/whisper"
+	"github.com/go-skynet/LocalAI/pkg/langchain"
 	"github.com/go-skynet/LocalAI/pkg/stablediffusion"
 	bloomz "github.com/go-skynet/bloomz.cpp"
 	bert "github.com/go-skynet/go-bert.cpp"
@@ -36,6 +37,7 @@ const (
 	RwkvBackend            = "rwkv"
 	WhisperBackend         = "whisper"
 	StableDiffusionBackend = "stablediffusion"
+	LCHuggingFaceBackend   = "langchain-huggingface"
 )
 
 var backends []string = []string{
@@ -100,6 +102,10 @@ var whisperModel = func(modelFile string) (interface{}, error) {
 	return whisper.New(modelFile)
 }
 
+var lcHuggingFace = func(repoId string) (interface{}, error) {
+	return langchain.NewHuggingFace(repoId)
+}
+
 func llamaLM(opts ...llama.ModelOption) func(string) (interface{}, error) {
 	return func(s string) (interface{}, error) {
 		return llama.New(s, opts...)
@@ -159,6 +165,8 @@ func (ml *ModelLoader) BackendLoader(backendString string, modelFile string, lla
 		return ml.LoadModel(modelFile, rwkvLM(filepath.Join(ml.ModelPath, modelFile+tokenizerSuffix), threads))
 	case WhisperBackend:
 		return ml.LoadModel(modelFile, whisperModel)
+	case LCHuggingFaceBackend:
+		return ml.LoadModel(modelFile, lcHuggingFace)
 	default:
 		return nil, fmt.Errorf("backend unsupported: %s", backendString)
 	}