feat(model-providers): 16 Add Gemini Completion and Embedding Models

README.md

@@ -34,7 +34,7 @@ We'd love your feedback. Please take a moment to let us know what you think usin
 
 ## High-level features
 - Full support for LLM completion and embedding workflows
-- Simple but powerful common abstractions over LLM providers (e.g. OpenAI, Cohere) and vector stores (e.g. MongoDB, in-memory)
+- Simple but powerful common abstractions over LLM providers (e.g. OpenAI, Cohere, Google Gemini) and vector stores (e.g. MongoDB, in-memory)
 - Integrate LLMs in your app with minimal boilerplate
 
 ## Installation
@@ -70,6 +70,6 @@ or just `full` to enable all features (`cargo add tokio --features macros,rt-mul
 Rig supports the following LLM providers natively:
 - OpenAI
 - Cohere
-
+- Google Gemini
 Additionally, Rig currently has the following integration sub-libraries:
 - MongoDB vector store: `rig-mongodb`

rig-core/README.md

@@ -11,7 +11,7 @@ More information about this crate can be found in the [crate documentation](http
 
 ## High-level features
 - Full support for LLM completion and embedding workflows
-- Simple but powerful common abstractions over LLM providers (e.g. OpenAI, Cohere) and vector stores (e.g. MongoDB, in-memory)
+- Simple but powerful common abstractions over LLM providers (e.g. OpenAI, Cohere, Google Gemini) and vector stores (e.g. MongoDB, in-memory)
 - Integrate LLMs in your app with minimal boilerplate
 
 ## Installation
@@ -47,6 +47,6 @@ or just `full` to enable all features (`cargo add tokio --features macros,rt-mul
 Rig supports the following LLM providers natively:
 - OpenAI
 - Cohere
-
+- Google Gemini
 Additionally, Rig currently has the following integration sub-libraries:
 - MongoDB vector store: `rig-mongodb`

rig-core/examples/gemini_agent.rs

@@ -0,0 +1,36 @@
+use rig::{
+    completion::Prompt,
+    providers::gemini::{self, completion::GenerationConfig},
+};
+
+#[tokio::main]
+async fn main() -> Result<(), anyhow::Error> {
+    // Initialize the Google Gemini client
+    // Create OpenAI client
+    let client = gemini::Client::from_env();
+
+    // Create agent with a single context prompt
+    let agent = client
+        .agent(gemini::completion::GEMINI_1_5_PRO)
+        .preamble("Be precise and concise.")
+        .temperature(0.5)
+        .max_tokens(8192)
+        .additional_params(
+            serde_json::to_value(GenerationConfig {
+                top_k: Some(1),
+                top_p: Some(0.95),
+                candidate_count: Some(1),
+                ..Default::default()
+            })
+            .unwrap(),
+        ) // Unwrap the Result to get the Value
+        .build();
+
+    // Prompt the agent and print the response
+    let response = agent
+        .prompt("How much wood would a woodchuck chuck if a woodchuck could chuck wood?")
+        .await?;
+    println!("{}", response);
+
+    Ok(())
+}

rig-core/src/providers/gemini/client.rs

@@ -0,0 +1,156 @@
+use crate::{
+    agent::AgentBuilder,
+    embeddings::{self},
+    extractor::ExtractorBuilder,
+};
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+
+use super::{completion::CompletionModel, embedding::EmbeddingModel};
+
+// ================================================================
+// Google Gemini Client
+// ================================================================
+const GEMINI_API_BASE_URL: &str = "https://generativelanguage.googleapis.com";
+
+#[derive(Clone)]
+pub struct Client {
+    base_url: String,
+    api_key: String,
+    http_client: reqwest::Client,
+}
+
+impl Client {
+    pub fn new(api_key: &str) -> Self {
+        Self::from_url(api_key, GEMINI_API_BASE_URL)
+    }
+    fn from_url(api_key: &str, base_url: &str) -> Self {
+        Self {
+            base_url: base_url.to_string(),
+            api_key: api_key.to_string(),
+            http_client: reqwest::Client::builder()
+                .default_headers({
+                    let mut headers = reqwest::header::HeaderMap::new();
+                    headers.insert(
+                        reqwest::header::CONTENT_TYPE,
+                        "application/json".parse().unwrap(),
+                    );
+                    headers
+                })
+                .build()
+                .expect("Gemini reqwest client should build"),
+        }
+    }
+
+    /// Create a new Google Gemini client from the `GEMINI_API_KEY` environment variable.
+    /// Panics if the environment variable is not set.
+    pub fn from_env() -> Self {
+        let api_key = std::env::var("GEMINI_API_KEY").expect("GEMINI_API_KEY not set");
+        Self::new(&api_key)
+    }
+
+    pub fn post(&self, path: &str) -> reqwest::RequestBuilder {
+        let url = format!("{}/{}?key={}", self.base_url, path, self.api_key).replace("//", "/");
+
+        tracing::info!("POST {}", url);
+        self.http_client.post(url)
+    }
+
+    /// Create an embedding model with the given name.
+    /// Note: default embedding dimension of 0 will be used if model is not known.
+    /// If this is the case, it's better to use function `embedding_model_with_ndims`
+    ///
+    /// # Example
+    /// ```
+    /// use rig::providers::gemini::{Client, self};
+    ///
+    /// // Initialize the Google Gemini client
+    /// let gemini = Client::new("your-google-gemini-api-key");
+    ///
+    /// let embedding_model = gemini.embedding_model(gemini::embedding::EMBEDDING_GECKO_001);
+    /// ```
+    pub fn embedding_model(&self, model: &str) -> EmbeddingModel {
+        EmbeddingModel::new(self.clone(), model, None)
+    }
+
+    /// Create an embedding model with the given name and the number of dimensions in the embedding generated by the model.
+    ///
+    /// # Example
+    /// ```
+    /// use rig::providers::gemini::{Client, self};
+    ///
+    /// // Initialize the Google Gemini client
+    /// let gemini = Client::new("your-google-gemini-api-key");
+    ///
+    /// let embedding_model = gemini.embedding_model_with_ndims("model-unknown-to-rig", 1024);
+    /// ```
+    pub fn embedding_model_with_ndims(&self, model: &str, ndims: usize) -> EmbeddingModel {
+        EmbeddingModel::new(self.clone(), model, Some(ndims))
+    }
+
+    /// Create an embedding builder with the given embedding model.
+    ///
+    /// # Example
+    /// ```
+    /// use rig::providers::gemini::{Client, self};
+    ///
+    /// // Initialize the Google Gemini client
+    /// let gemini = Client::new("your-google-gemini-api-key");
+    ///
+    /// let embeddings = gemini.embeddings(gemini::embedding::EMBEDDING_GECKO_001)
+    ///     .simple_document("doc0", "Hello, world!")
+    ///     .simple_document("doc1", "Goodbye, world!")
+    ///     .build()
+    ///     .await
+    ///     .expect("Failed to embed documents");
+    /// ```
+    pub fn embeddings(&self, model: &str) -> embeddings::EmbeddingsBuilder<EmbeddingModel> {
+        embeddings::EmbeddingsBuilder::new(self.embedding_model(model))
+    }
+
+    /// Create a completion model with the given name.
+    /// Gemini-specific parameters can be set using the [GenerationConfig](crate::providers::gemini::completion::GenerationConfig) struct.
+    /// https://ai.google.dev/api/generate-content#generationconfig
+    pub fn completion_model(&self, model: &str) -> CompletionModel {
+        CompletionModel::new(self.clone(), model)
+    }
+
+    /// Create an agent builder with the given completion model.
+    /// Gemini-specific parameters can be set using the [GenerationConfig](crate::providers::gemini::completion::GenerationConfig) struct.
+    /// https://ai.google.dev/api/generate-content#generationconfig
+    /// # Example
+    /// ```
+    /// use rig::providers::gemini::{Client, self};
+    ///
+    /// // Initialize the Google Gemini client
+    /// let gemini = Client::new("your-google-gemini-api-key");
+    ///
+    /// let agent = gemini.agent(gemini::completion::GEMINI_1_5_PRO)
+    ///    .preamble("You are comedian AI with a mission to make people laugh.")
+    ///    .temperature(0.0)
+    ///    .build();
+    /// ```
+    pub fn agent(&self, model: &str) -> AgentBuilder<CompletionModel> {
+        AgentBuilder::new(self.completion_model(model))
+    }
+
+    /// Create an extractor builder with the given completion model.
+    pub fn extractor<T: JsonSchema + for<'a> Deserialize<'a> + Serialize + Send + Sync>(
+        &self,
+        model: &str,
+    ) -> ExtractorBuilder<T, CompletionModel> {
+        ExtractorBuilder::new(self.completion_model(model))
+    }
+}
+
+#[derive(Debug, Deserialize)]
+pub struct ApiErrorResponse {
+    pub message: String,
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(untagged)]
+pub enum ApiResponse<T> {
+    Ok(T),
+    Err(ApiErrorResponse),
+}