Awesome Free LLM Apis

Awesome Free LLM APIs

Skill by ara.so — Daily 2026 Skills collection.

A curated list of LLM providers offering permanent free tiers for text inference — no trial credits, no expiry. All endpoints listed are OpenAI SDK-compatible unless noted.

Provider Overview

Provider APIs (trained/fine-tuned by the company)

Inference Providers (host open-weight models)

Getting API Keys

Each provider has its own key management page:

# Store keys as environment variables — never hardcode them
export GROQ_API_KEY="your_groq_key"
export GEMINI_API_KEY="your_gemini_key"
export OPENROUTER_API_KEY="your_openrouter_key"
export MISTRAL_API_KEY="your_mistral_key"
export COHERE_API_KEY="your_cohere_key"
export CEREBRAS_API_KEY="your_cerebras_key"
export GITHUB_TOKEN="your_github_pat"
export HF_TOKEN="your_huggingface_token"
export NVIDIA_API_KEY="your_nvidia_key"
export CLOUDFLARE_API_TOKEN="your_cf_token"
export CLOUDFLARE_ACCOUNT_ID="your_cf_account_id"

OpenAI SDK Integration

All providers (except Ollama Cloud) are OpenAI SDK-compatible — just swap the base_url and api_key.

Python

from openai import OpenAI

# ── Groq ──────────────────────────────────────────────────────────────────────
client = OpenAI(
    base_url="https://api.groq.com/openai/v1",
    api_key=os.environ["GROQ_API_KEY"],
)
response = client.chat.completions.create(
    model="llama-3.3-70b-versatile",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

# ── Google Gemini ─────────────────────────────────────────────────────────────
client = OpenAI(
    base_url="https://generativelanguage.googleapis.com/v1beta/openai/",
    api_key=os.environ["GEMINI_API_KEY"],
)
response = client.chat.completions.create(
    model="gemini-2.0-flash",
    messages=[{"role": "user", "content": "Explain quantum entanglement."}],
)

# ── Mistral AI ────────────────────────────────────────────────────────────────
client = OpenAI(
    base_url="https://api.mistral.ai/v1",
    api_key=os.environ["MISTRAL_API_KEY"],
)
response = client.chat.completions.create(
    model="mistral-small-latest",
    messages=[{"role": "user", "content": "Write a haiku about code."}],
)

# ── OpenRouter ────────────────────────────────────────────────────────────────
client = OpenAI(
    base_url="https://openrouter.ai/api/v1",
    api_key=os.environ["OPENROUTER_API_KEY"],
)
response = client.chat.completions.create(
    model="deepseek/deepseek-r1",          # free model on OpenRouter
    messages=[{"role": "user", "content": "What is 2+2?"}],
    extra_headers={
        "HTTP-Referer": "https://yourapp.com",   # optional but recommended
        "X-Title": "My App",
    },
)

# ── Cerebras ──────────────────────────────────────────────────────────────────
client = OpenAI(
    base_url="https://api.cerebras.ai/v1",
    api_key=os.environ["CEREBRAS_API_KEY"],
)
response = client.chat.completions.create(
    model="llama-3.3-70b",
    messages=[{"role": "user", "content": "Tell me a joke."}],
)

# ── NVIDIA NIM ────────────────────────────────────────────────────────────────
client = OpenAI(
    base_url="https://integrate.api.nvidia.com/v1",
    api_key=os.environ["NVIDIA_API_KEY"],
)
response = client.chat.completions.create(
    model="meta/llama-3.3-70b-instruct",
    messages=[{"role": "user", "content": "Summarize this text."}],
)

# ── GitHub Models ─────────────────────────────────────────────────────────────
client = OpenAI(
    base_url="https://models.inference.ai.azure.com",
    api_key=os.environ["GITHUB_TOKEN"],
)
response = client.chat.completions.create(
    model="gpt-4o",
    messages=[{"role": "user", "content": "Draft an email."}],
)

# ── Cohere (OpenAI-compatible endpoint) ───────────────────────────────────────
client = OpenAI(
    base_url="https://api.cohere.com/compatibility/v1",
    api_key=os.environ["COHERE_API_KEY"],
)
response = client.chat.completions.create(
    model="command-a-03-2025",
    messages=[{"role": "user", "content": "Translate to French: Hello world"}],
)

JavaScript / TypeScript

import OpenAI from "openai";

// ── Groq ──────────────────────────────────────────────────────────────────────
const groq = new OpenAI({
  baseURL: "https://api.groq.com/openai/v1",
  apiKey: process.env.GROQ_API_KEY,
});

const completion = await groq.chat.completions.create({
  model: "llama-3.3-70b-versatile",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);

// ── OpenRouter with free model router ────────────────────────────────────────
const openrouter = new OpenAI({
  baseURL: "https://openrouter.ai/api/v1",
  apiKey: process.env.OPENROUTER_API_KEY,
  defaultHeaders: {
    "HTTP-Referer": "https://yourapp.com",
    "X-Title": "My App",
  },
});

// Use the free models router — automatically picks an available free model
const freeCompletion = await openrouter.chat.completions.create({
  model: "openrouter/free",
  messages: [{ role: "user", content: "What is the capital of France?" }],
});

// ── Mistral ───────────────────────────────────────────────────────────────────
const mistral = new OpenAI({
  baseURL: "https://api.mistral.ai/v1",
  apiKey: process.env.MISTRAL_API_KEY,
});

const mistralCompletion = await mistral.chat.completions.create({
  model: "mistral-small-latest",
  messages: [{ role: "user", content: "Explain async/await in JavaScript." }],
});

Cloudflare Workers AI

Cloudflare uses a slightly different auth pattern:

import requests, os

ACCOUNT_ID = os.environ["CLOUDFLARE_ACCOUNT_ID"]
API_TOKEN  = os.environ["CLOUDFLARE_API_TOKEN"]

response = requests.post(
    f"https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/ai/run/"
    "@cf/meta/llama-3.3-70b-instruct-fp8-fast",
    headers={"Authorization": f"Bearer {API_TOKEN}"},
    json={"messages": [{"role": "user", "content": "What is Cloudflare Workers?"}]},
)
result = response.json()
print(result["result"]["response"])