Supported Providers

Each modality has its own Go module. Vendor implementations are sub-modules. Pull only the ones you use.

LLM Providers

Each native LLM vendor is its own sub-module under llm/:

Module	Provider	Streaming	Tools	Structured Output	Attachments
`llm/anthropic`	Anthropic (Claude)	✅	✅	✅	✅
`llm/openai`	OpenAI (GPT)	✅	✅	✅	✅
`llm/gemini`	Google Gemini	✅	✅	✅	✅
`llm/bedrock`	AWS Bedrock (wraps `llm/anthropic` for Claude on Bedrock)	✅	✅	✅	✅
`llm/azure`	Azure OpenAI (wraps `llm/openai`)	✅	✅	✅	✅
`llm/vertexai`	Google Vertex AI (wraps `llm/gemini`)	✅	✅	✅	✅

OpenAI-compatible vendors

These are thin wrappers over llm/openai that hardcode the vendor's base URL. They expose only the OpenAI-compatible subset; vendor-unique features (xAI Live Search, Perplexity citations, etc.) are not wired up. Pass any vendor-supported model id via openai.WithModel even without an entry in the model package.

Module	Provider	Default base URL
`llm/xai`	xAI (Grok)	`https://api.x.ai/v1`
`llm/openrouter`	OpenRouter	`https://openrouter.ai/api/v1`
`llm/groq`	Groq	`https://api.groq.com/openai/v1`
`llm/deepseek`	DeepSeek	`https://api.deepseek.com/v1`
`llm/perplexity`	Perplexity Sonar	`https://api.perplexity.ai`
`llm/mistral`	Mistral AI	`https://api.mistral.ai/v1`
`llm/cerebras`	Cerebras Inference	`https://api.cerebras.ai/v1`
`llm/fireworks`	Fireworks AI	`https://api.fireworks.ai/inference/v1`
`llm/together`	Together AI	`https://api.together.xyz/v1`
`llm/ollama`	Ollama (local)	`http://localhost:11434/v1`
`llm/berget`	Berget AI (EU-hosted, EUR pricing)	`https://api.berget.ai/v1`

For any other OpenAI-compatible endpoint, use llm/openai directly with WithBaseURL(...). See BYOM.

Embedding Providers

Each native embedding vendor is its own sub-module under embeddings/:

Module	Provider	Text	Multimodal	Contextualized
`embeddings/voyage`	Voyage AI	✅	✅	✅
`embeddings/openai`	OpenAI	✅	❌	❌
`embeddings/cohere`	Cohere	✅	❌	❌
`embeddings/gemini`	Google Gemini	✅	❌	❌
`embeddings/mistral`	Mistral	✅	❌	❌
`embeddings/bedrock`	AWS Bedrock (Titan + Cohere)	✅	❌	❌
`embeddings/berget`	Berget AI (multilingual E5)	✅	❌	❌

Reranker Providers

Each native reranker vendor under rerankers/:

Module	Provider
`rerankers/voyage`	Voyage AI
`rerankers/cohere`	Cohere
`rerankers/berget`	Berget AI (EU-hosted, EUR pricing)

Image Generation Providers

Under image/:

Module	Provider	Models	Streaming
`image/openai`	OpenAI	DALL-E 2, DALL-E 3, GPT Image 1 / 1-mini / 1.5 / 2	✅ (gpt-image-*)
`image/azure`	Azure OpenAI	GPT Image 1.5 / 2 (Azure-hosted; api-key or Entra ID)	✅ (gpt-image-*)
`image/gemini`	Google Gemini	Gemini 2.5 Flash Image, Gemini 3 Pro Image, Imagen 4 / 4 Ultra / 4 Fast	❌
`image/xai`	xAI	Grok 2 Image, Grok Imagine, Grok Imagine Pro	❌
`image/openrouter`	OpenRouter	26 registered (GPT Image / GPT-5 Image, Gemini 2.5–3.1 Image, Seedream 4.5, FLUX.2, Recraft V4/V4.1, MAI-Image, Riverflow, Grok Imagine) + any routed id	✅ (gpt-image-, gpt-5-image)

TTS (Text-to-Speech) Providers

Under tts/:

Module	Provider	Streaming	Forced Alignment
`tts/openai`	OpenAI	(buffered)	❌
`tts/elevenlabs`	ElevenLabs	✅	✅
`tts/google`	Google Cloud	(buffered)	❌
`tts/azure`	Azure Speech	(buffered)	❌
`tts/deepgram`	Deepgram Aura	✅	❌
`tts/openrouter`	OpenRouter (wraps `tts/openai`) — 18 registered + any routed id	(buffered)	❌

STT (Speech-to-Text) Providers

Under stt/:

Module	Provider	Streaming	Translation	Timestamps
`stt/openai`	OpenAI Whisper / GPT-4o Transcribe	❌	✅	✅
`stt/deepgram`	Deepgram	✅	❌	✅
`stt/assemblyai`	AssemblyAI v3 Universal-Streaming	✅	❌	✅
`stt/google`	Google Cloud Speech	❌	❌	✅
`stt/elevenlabs`	ElevenLabs Scribe v2 Realtime	✅	❌	✅
`stt/berget`	Berget AI (Whisper: Swedish/Norwegian/v3)	❌	✅	✅
`stt/openrouter`	OpenRouter (wraps `stt/openai`) — 13 registered + any routed id	❌	❌	✅ (OpenAI-compatible upstreams)

Fill-in-the-Middle (FIM) Providers

Under fim/:

Module	Provider	Streaming
`fim/mistral`	Mistral Codestral	✅
`fim/deepseek`	DeepSeek FIM	✅

Modality interfaces

Each modality also publishes a thin interface module so consumers can write generic code:

llm — llm.LLM interface, request/response types, retry helpers
embeddings — embeddings.Embedding interface
rerankers — rerankers.Reranker interface
image — image.ImageGeneration interface
tts — tts.Generation interface (+ optional tts.ForcedAlignmentProvider)
stt — stt.SpeechToText interface
fim — fim.FIM interface

These interface modules carry no vendor SDKs.