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Production AI APIs on Apple Silicon

API Platform

Flat-rate APIs in the cloud, or unlimited self-hosted on Courier OS.

Pricing

Simple, Transparent Pricing

From generous free cloud access to unlimited self-hosting. Scale your AI infrastructure as you grow.

Courier Cloud

Flat-rate usage without token math

Start for free, scale up on the most affordable production tiers at $25/mo and $100/mo for production workloads.

  • Start building completely free
  • OpenAI-compatible endpoints
  • Production analytics included
  • Upgrade path to dedicated cloud hardware

Self-hosted unlimited usage

Buy the Mac once. Run unlimited inference on your hardware with the same API platform, analytics, and model library — your data never leaves your infrastructure.

Your Journey with Courier

1
Free Tier

Start on Courier Cloud at no cost to see how it works for you.

2
Pro Tier

Maxing out the free limits? Upgrade for higher usage and faster speeds.

3
Max Tier

For heavy cloud users who need the highest limits and fastest speeds.

4
Self-Managed

Ready for unlimited? Run Courier on your own Mac.

5
Fully Managed

Zero hassle. We manage your Mac hardware for you.

Courier Cloud

Courier Cloud

Free

$0/mo
500 credits/mo

The perfect way to start. Experiment with our Mac-optimized infrastructure at no cost.

  • Generous rate limits
  • Access to open-source models
  • Models load on demand
Popular Choice
Courier Cloud

Pro

$25/mo
25k credits/mo

Higher limits and faster speeds.

  • Our fastest hardware
  • Higher rate limits
  • Lower latency and faster ttft speeds
Courier Cloud

Max

$100/mo
100k credits/mo

Maximum cloud capacity for power users and scaling applications.

  • Everything in Pro
  • Highest cloud rate limits
  • Premium model access
  • Priority cloud support

Self-Hosted License

Self-Managed

Standalone

$300/mo

Install on your own M-series Mac. Fully featured and transferable. This is what Courier Cloud runs on.

  • Unlimited tokens and requests
  • Speed-optimized & production-ready
  • Transferable between Macs
  • Scout Pro included — Emissary + Scout Code
  • Courier Relay — drive it from your iPhone
  • Full privacy & data control
Zero Maintenance
3rd-Party Managed

Managed

$500/mo

Send us your Mac, and we manage everything: backup power, internet, setup, and maintenance.

  • All Standalone benefits
  • No hardware upkeep hassle
  • Backup power & redundant internet
  • 24/7 technical maintenance
Coming Soon
More Than a Simple Model Server

Production Ready Out of the Box

Our API platform goes far beyond model serving with dynamic memory management, industry-leading tool calling for agents, automatic hallucination detection, analytics, and the highest throughput on Apple Silicon

Flex + Static Deployment

Mix always-on and on-demand APIs on the same Mac.

Intelligent Memory Management

Never worry about OOMs again. LRU offload for flex models handles production spikes automatically.

Optimized Apple Silicon Speed

MLX-native stack with TurboQuant, KV caching, and robust batching gives you the best speeds and highest throughput on a single Mac.

Maximum Throughput

Robust batching for concurrency plus model pooling with a round-robin-styled API for redundancy. Courier maximizes throughput and speed on Apple hardware.

Automatic Hallucination Detection

Our system detects when models hang or hallucinate and automatically restarts them. You only lose one request instead of an entire queue, ensuring maximum uptime and reliability even with SLMs.

Industry-Leading Agent Capabilities

We built industry leading tool calling technology, making open source models on our platform the most performant for agentic workflows.

Real-Time Analytics

Track requests, tokens, latency, and model usage from day one.

Built-in Whisper API

Never pay for audio transcription again. Transcription and translation endpoints for automation pipelines.

Flex APIs

Models Load on Demand

Limited memory? No problem. With the flex API you can load 10 models on one Mac Mini! Models load on-demand and intelligently negotiate memory with each other so you can use many different models in one constrained memory pool.

Static APIs

Always-On Production Endpoints

Static APIs stay loaded 24/7 for minimum latency. Pair static hot paths with flex overflow models for the best cost and performance mix.

Courier Core Library

Curated Cloud Models We Ship Today

Six production agents across lite, balanced, and frontier tiers — plus embeddings, image generation, and speech. Benchmarked, maintained, and ready on Courier Cloud.

FastLite Agents

Lite Agents

Best for classification, routing, extraction, and simple RAG agents where speed and cost matter most.

2 items

Gemma 4 E2B

Gemma 4 · omni

Courier Core

Our preferred compact Gemma 4 omni on Courier Cloud — faster than E4B with full multimodal support. Ideal for routing, fast sub-agents, and lightweight agentic workflows on memory-constrained devices.

Ternary Bonsai 4B

Bonsai · omni

Courier Core

The brains of a 4B with the speed of a 1B — a tiny, responsive lite agent for routing, extraction, and high-volume utility work.

Perfect Speed:Performance ratioBalanced Agents

Balanced Agents

The production default — Gemma 4 26B A4B for fast generalist work and Ternary Bonsai 27B for coding. Lower cost and fewer usage restrictions than frontier.

2 items

Gemma 4 26B A4B

Gemma 4 · omni

Courier Core

A fast, powerful generalist — chat, RAG, multimodal, and broad-knowledge tasks at balanced-agent cost with fewer usage restrictions than frontier.

Ternary Bonsai 27B

Bonsai · omni

Courier Core

Our balanced coding agent — strong on agentic coding and tool-using workflows at lower cost, though not quite as performant as frontier Qwen3.6.

Max IntelligenceFrontier Agents

Frontier Agents

Our two flagship agents — Gemma 4 31B for frontier generalist work and Qwen3.6 27B for specialist coding. Highest capability with tighter usage than balanced agents.

2 items

Gemma 4 31B

Gemma 4 · omni

Courier Core

Our frontier generalist agent — complex chat, multimodal reasoning, and broad-knowledge tasks at maximum quality.

Qwen3.6 27B

Qwen3.6 · omni

Courier Core

Our specialist frontier coding agent — built for the hardest coding agents and multi-step tool-using workflows.

RetrievalEmbeddings

Embeddings

Turn text into vectors for search, retrieval, clustering, and memory systems.

1 item

Qwen3 Embedding 8B

Qwen3 · text-embedding

Courier Core

A strong open-source embedding model — high retrieval quality for production RAG pipelines and semantic search.

Text to imageImage Generation

Image Generation

Create images from text prompts for creative workflows, product visuals, and generated media.

1 item

FLUX.1 schnell

FLUX · text-image

Courier Core

Compact, fast image generator for product visuals, creative drafts, and generated media.

AudioSpeech

Speech

Transcription, translation, and audio understanding for automation pipelines.

1 item

Whisper

OpenAI · audio-text

Courier Core

Built-in speech-to-text for transcription and translation — available on every Courier Cloud plan.

Real-Time Analytics
Loading production data...
Find the Right Mac for Your Use Case
Start from a preset or build your own flex stack, then see which Apple Silicon Mac fits your models.
Model Count

Select multiple models for different tasks (e.g., coding, vision, and general chat). As your user base grows, you will see increased latency and degradation in user-experience if multiple models are not utilized.

1-3 Models:Focused Setup
4-10 Models:Versatile Setup
10+ Models:Full Ecosystem
Throughput - Quantization & VRAM

Performance is determined by model quantization and available VRAM (Video Memory). Reasoning diminishes as quantization drops, possibly leading to hallucinations and other unintended side-effects.

  • 4-bit: Maximum speed, lower VRAM
  • 8-bit: Balanced speed and logic
  • 16-bit: Maximum reasoning capability
Model Size - Parameters

Parameters are the internal variables the AI learns during training. A 30GB model has more "knowledge" than an 8GB model.

Lite (1GB - 14GB):Fast, Efficient
Balanced (15GB - 50GB):Versatile, Strong
Frontier (70GB+):Advanced Reasoning
Context Window - Memory

The context window is the amount of text (tokens) the AI can "remember" during a conversation or process in a single request.

32k tokens:~50 pages of text
128k tokens:Full book length
1M+ tokens:Entire codebases

Dynamic Memory Management

Courier offers 2 model serving options to maximize memory efficiency, Flex and Static

Flex Models

Flex models load into memory upon request and unload after 5 minutes of inactivity.

• Enables running multiple large models on limited hardware

• Dynamic memory allocation

• Only the largest flex model counts towards VRAM requirements

Static Models

Static models stay loaded in memory at all times, providing instant response.

• Instant availability, no load time

• Continuous memory occupancy

• Each static model adds directly to total VRAM requirements

Feeling overwhelmed or unsure what to choose?

Let us help you figure it out.

Start With a Use Case

Pre-configured flex stacks — memory is calculated from the largest flex model loaded at once.

Scout
Chat agent, lightweight sub-agent, and embeddings for Pathfinder
All models use flex APIs
Coding Agent
Planner + implementer stack for agentic coding workflows
All models use flex APIs
Production Server
General-purpose production API with Gemma 4
All models use flex APIs

What do you need AI for?

Select the primary functions for your self-hosted AI setup

Agent
Tool-calling agents, chat, and multi-modal workflows
Image Generation
Generate images from text prompts
Embeddings/RAG
Semantic search, retrieval, and memory

Select Your Models

Choose the AI models to include in your platform (Filtered by your use cases)

No models selected. Add models to your platform to continue.

Hardware Recommendation

Infrastructure Requirements
Based on your model selection
Total VRAM Required7 GB
Recommended HardwareMac mini (M4, 16GB) — from $599

Need multi-device clustering or a custom setup? Book a free consultation