Cerebras Free API Guide: 1 Million Tokens/Day, GPT OSS & GLM 4.7

Cerebras offers the most generous free API tier among all AI platforms.

1 million tokens per day for free, no credit card required, no paid plan needed. Just sign up and go.

Free Tier Details

1 million tokens daily — resets every day, not a monthly total. Unused tokens don’t carry over, but you get a fresh 1M every 24 hours.

Supported models:

Llama 4 Scout — latest open-source model
GLM-4.7 — Zhipu’s flagship
GPT OSS — OpenAI open-source models
Plus other mainstream open-source models

No credit card — sign up, get your key, no payment info required.

Speed: Cerebras’ WSE (Wafer-Scale Engine) chips deliver inference speeds far beyond standard GPUs. Benchmarks show 2600+ tokens/second, significantly faster than Nvidia equivalents.

Getting Started

Go to cloud.cerebras.ai
Register (no credit card)
Create an API Key
Start calling

Python example:

from openai import OpenAI
client = OpenAI(api_key="YOUR_KEY", base_url="https://api.cerebras.ai/v1")
response = client.chat.completions.create(
    model="llama-4-scout",
    messages=[{"role": "user", "content": "Hello"}]
)

Free vs Paid

Feature	Free	Developer ($10+/mo)
Daily tokens	1M	24M
Rate limits	Standard	10x higher
Priority	Standard	Higher
Models	Mainstream open-source	All models

1M tokens is enough for daily development. If you’re coding, testing, or running automations, this is sufficient. Heavy users should upgrade.

Real-World Experience

The speed is genuinely impressive. Same models run several times faster on Cerebras than on standard GPUs. For low-latency scenarios (real-time chat, streaming output), this advantage is significant.

Model selection is solid — Llama 4, GLM-4.7, GPT OSS all available. No VPN needed for direct access.

Who Should Use This

Developers needing fast inference — Cerebras’ LPU chips outperform standard GPUs
Wanting to trial mainstream models for free — 1M tokens/day validates ideas easily
Real-time conversation apps — low latency is the core advantage
Budget-conscious teams — free tier is sufficient, upgrade when needed

Summary

Cerebras’ free API is the current ceiling: 1M tokens daily, no credit card, blazing fast, mainstream models covered.

If you need fast, free AI inference, this is one of the best options.

Project: cerebras.ai API docs: cloud.cerebras.ai

Data current as of July 14, 2026. Free policies may change.