edgequake-litellm 0.4.0

Drop-in LiteLLM replacement backed by Rust — same API, 10× lower latency

edgequake-litellm

edgequake-litellm is a LiteLLM-compatible Python package backed by the Rust edgequake-llm core. The intent is simple: keep the LiteLLM call shape, replace the Python network path with a native implementation, and preserve operational features such as streaming, tool calling, embeddings, and provider routing.

# Before
import litellm

# After
import edgequake_litellm as litellm

Install

pip install edgequake-litellm

Supported wheel targets:

Platform	Architectures
Linux (glibc)	x86_64, aarch64
Linux (musl)	x86_64, aarch64
macOS	x86_64, arm64
Windows	x86_64

The package uses abi3-py39, so one wheel per platform covers Python 3.9+.

Scope note: this package covers the LiteLLM-compatible chat and embedding API surface. The Rust crate also ships image-generation providers, but those APIs are not exposed through edgequake-litellm yet.

Quick Start

import asyncio
import edgequake_litellm as litellm

messages = [{"role": "user", "content": "Explain Rust ownership in one sentence."}]

# Sync
resp = litellm.completion("openai/gpt-4o-mini", messages, max_tokens=128)
print(resp.choices[0].message.content)

# Async
async def main() -> None:
    resp = await litellm.acompletion("anthropic/claude-3-5-haiku-20241022", messages)
    print(resp.content)

    stream = await litellm.acompletion("openai/gpt-4o-mini", messages, stream=True)
    async for chunk in stream:
        print(chunk.choices[0].delta.content or "", end="", flush=True)

asyncio.run(main())

Embeddings:

import edgequake_litellm as litellm

result = litellm.embedding(
    "openai/text-embedding-3-small",
    ["hello world", "rust is fast"],
)

print(result.data[0].embedding[:3])
print(len(result[0]))

Provider Routing

Pass provider/model as the model argument:

Provider	Example
OpenAI	openai/gpt-4o-mini
Azure OpenAI	azure/my-gpt4o-deployment
Anthropic	anthropic/claude-3-5-sonnet-20241022
Gemini	gemini/gemini-2.5-flash
Vertex AI	vertexai/gemini-2.5-flash
xAI	xai/grok-4
OpenRouter	openrouter/meta-llama/llama-3.1-70b-instruct
Mistral	mistral/mistral-large-latest
AWS Bedrock	bedrock/amazon.nova-lite-v1:0
HuggingFace	huggingface/meta-llama/Meta-Llama-3.1-8B-Instruct
OpenAI Compatible	openai-compatible/deepseek-chat
Ollama	ollama/llama3.2
LM Studio	lmstudio/local-model
VSCode Copilot	vscode-copilot/gpt-4o-mini
Mock	mock/test-model

Embedding-only backend:

Provider	Example
Jina	jina/jina-embeddings-v3

Supported Features

Provider	Chat	Stream	Tools	Embeddings	Notes
OpenAI	Yes	Yes	Yes	Yes	includes max_completion_tokens handling
Azure OpenAI	Yes	Yes	Yes	Yes	deployment-based routing
Anthropic	Yes	Yes	Yes	No	Claude extended thinking surfaced in response metadata
Gemini	Yes	Yes	Yes	Yes	Google AI Studio
Vertex AI	Yes	Yes	Yes	Yes	GCP auth / ADC
xAI	Yes	Yes	Yes	No	Grok
OpenRouter	Yes	Yes	Yes	No	gateway models
Mistral	Yes	Yes	Yes	Yes	native embeddings
AWS Bedrock	Yes	Yes	Yes	Yes	backed by the Rust Bedrock feature
HuggingFace	Yes	Yes	Limited	No	Inference API
OpenAI Compatible	Yes	Yes	Yes	Yes	Groq, Together, DeepSeek, custom gateways
Ollama	Yes	Yes	Yes	Yes	local runtime
LM Studio	Yes	Yes	Yes	Yes	local OpenAI-compatible server
VSCode Copilot	Yes	Yes	Yes	Yes	requires proxy server
Jina	No	No	No	Yes	embeddings only
Mock	Yes	No	Yes	Yes	unit tests / local development

Environment Setup

Provider	Required environment
OpenAI	OPENAI_API_KEY
Azure OpenAI	AZURE_OPENAI_ENDPOINT, AZURE_OPENAI_API_KEY, AZURE_OPENAI_DEPLOYMENT_NAME
Anthropic	ANTHROPIC_API_KEY
Gemini	GEMINI_API_KEY or GOOGLE_API_KEY
Vertex AI	GOOGLE_CLOUD_PROJECT and ADC or GOOGLE_ACCESS_TOKEN
xAI	XAI_API_KEY
OpenRouter	OPENROUTER_API_KEY
Mistral	MISTRAL_API_KEY
AWS Bedrock	standard AWS credential chain plus AWS_REGION
HuggingFace	HF_TOKEN or HUGGINGFACE_TOKEN
OpenAI Compatible	OPENAI_COMPATIBLE_BASE_URL, optional OPENAI_COMPATIBLE_API_KEY
Ollama	optional OLLAMA_HOST
LM Studio	optional LMSTUDIO_HOST
VSCode Copilot	optional VSCODE_COPILOT_PROXY_URL
Jina	JINA_API_KEY

Module defaults:

import edgequake_litellm as litellm

litellm.set_default_provider("anthropic")
litellm.set_default_model("claude-3-5-haiku-20241022")

Environment defaults:

• LITELLM_EDGE_PROVIDER
• LITELLM_EDGE_MODEL
• LITELLM_EDGE_TIMEOUT
• LITELLM_EDGE_MAX_RETRIES
• LITELLM_EDGE_VERBOSE

LiteLLM Compatibility

Implemented:

• completion()
• acompletion()
• embedding()
• aembedding()
• stream=True on acompletion()
• stream() async generator
• response.choices[0].message.content
• response.to_dict()
• AuthenticationError, RateLimitError, NotFoundError, Timeout
• module globals set_verbose and drop_params

Behavior notes:

• synchronous streaming is intentionally not supported; use acompletion(..., stream=True) or stream()
• unsupported or extra keyword arguments are dropped for LiteLLM parity
• per-call api_key, api_base, and timeout parameters are accepted at the Python layer but not yet wired into the Rust core for every provider

Provider Examples

OpenAI-compatible custom gateway:

export OPENAI_COMPATIBLE_BASE_URL=https://api.groq.com/openai/v1
export OPENAI_COMPATIBLE_API_KEY=...

import edgequake_litellm as litellm

resp = litellm.completion(
    "openai-compatible/llama-3.3-70b-versatile",
    [{"role": "user", "content": "Write a one-line changelog summary."}],
)
print(resp.content)

Vertex AI:

export GOOGLE_CLOUD_PROJECT=my-project
gcloud auth application-default login

resp = litellm.completion(
    "vertexai/gemini-2.5-flash",
    [{"role": "user", "content": "Summarise this design review."}],
)

Jina embeddings:

import edgequake_litellm as litellm

vectors = litellm.embedding(
    "jina/jina-embeddings-v3",
    ["retrieval query", "retrieval document"],
)
print(len(vectors[0]))

Development

git clone https://github.com/raphaelmansuy/edgequake-llm.git
cd edgequake-llm/edgequake-litellm

python -m venv .venv
source .venv/bin/activate

pip install "maturin>=1.7" "pytest>=8" "pytest-asyncio>=0.24" "ruff>=0.3" "mypy>=1.8"
pip install . -v

pytest -q -k "not e2e"
ruff check python/
mypy python/edgequake_litellm --ignore-missing-imports

Release

Release tags are separate from the Rust crate:

• Rust crate: vX.Y.Z
• Python package: py-vX.Y.Z

Publish flow for edgequake-litellm:

1. bump edgequake-litellm/Cargo.toml
2. bump edgequake-litellm/pyproject.toml
3. update CHANGELOG.md
4. push the release-prep commit
5. wait for python-ci.yml to go green
6. push py-vX.Y.Z

python-publish.yml builds the sdist and wheels, smoke-tests the native wheels, publishes to PyPI, and can attach built artifacts to the GitHub Release.

Changelog

See CHANGELOG.md for the current release line and published history.

License

Apache-2.0. See ../LICENSE-APACHE.