Free LLM API guides
Tutorials, provider guides and comparisons for building with free AI models. Everything works through one OpenAI-compatible endpoint.
Simplified Technical English: We Tested It on Our Own Blog
ASD-STE100 is a set of writing rules from the aircraft industry. One sentence in six on our blog breaks them. An AI rewrite removed every rule error and kept every number, but it made sentences too short and changed descriptions into instructions. Plus a free checker.
Read more →Jev Was 12.7x Faster and 12 Points Less Accurate
Jev answers multiple-choice questions by reading a model's scores at the instant before it would have spoken, generating nothing at all. We measured it against ordinary generation on the same model, questions and machine: 12.7x faster than the prompt most people write, 1.29x faster than a disciplined one, and twelve accuracy points worse than both. Plus why almost no hosted API will let you do it.
Read more →The Future of AI, Read From 35,000 API Requests
Most predictions about AI are about things nobody can measure yet. These are argued from what people are actually doing: long prompts went from 0.3% to 12.3% of requests in seven weeks, five models we routed to died in nine days, and tool-calling callers tripled. Five bets, and the numbers that would prove each one wrong.
Read more →Is the Hugging Face Inference API Free in 2026? We Counted
Most answers to this question describe a product that no longer works that way. We asked Hugging Face's own router instead: 327 model and provider pairs, none flagged free, five priced at zero, and a third publishing no price at all. With the one-line command to check us.
Read more →Cloudflare Workers AI Lists 31 Text Models. We Could Call 28.
A model list is a claim and a response is evidence. Of 31 text models Cloudflare advertises, three are not callable on a normal account, one has been deprecated for months and is still listed, and two answer with nothing. Measured latency, real per-token prices, and the vision model that turned out to be the fastest we route to.
Read more →We Peak at 4% of Our Rate Limit and Hit It Every Day
A rate limit advertised in requests per minute and enforced in tokens per minute, measured across 15,818 production requests. Why backoff cannot help you, how we sized a skip that cost exactly one good request in 15,818, and an interactive check for your own prompts.
Read more →The Most Useful Thing You Can Do With Our Free API Is Stop Using Our Quota
A free gateway has an odd incentive: it wants its heaviest users to stop drawing on the shared pool. Bring-your-own-key does that without anyone paying anyone. What happens to the credential, what it deliberately does not bypass, and why nobody has used it yet.
Read more →Every LLM API Says It Is OpenAI-Compatible. None of Them Agree.
Almost every provider advertises an OpenAI-compatible endpoint. Four months of routing across a dozen of them taught us the phrase means seven different things, each worth one production incident. Interactive: the same request in four dialects, and the package that now hides all of it.
Read more →Ox Alpha Should Never Tell Us Who It Is
The internet's first instinct with an anonymous model is to unmask it. That is backwards. Anonymity is the only reason anyone publishes the bad column, and it is the first thing a logo takes away. Also, honestly, where the Bitcoin comparison stops working.
Read more →Testing a 1M Context Window with 45 Million Free Tokens
Someone offered 100 trillion free tokens a day, so we spent 45 million of them finding out whether a 1M token context window actually works. It does, unevenly, and it fails in the wrong places: the worst spot to hide a fact was the very top of the document. An interactive heatmap, and a race you can run against the model yourself.
Read more →Tryingopen Alternative: The Same Open Models, via API
Tryingopen and Offline Base are the fastest way to try an open model, and neither can be called from code. Where that wall is, what an API gives you instead, and the one row of the comparison table we would rather you read here than find in a privacy policy.
Read more →Which Language Costs the Most in AI Tokens?
Amharic needs 5.2x the tokens English does for the same three sentences. An interactive leaderboard for 20 languages, why the popular multipliers are overstated, and the hard questions about pricing, parity and who pays.
Read more →NVIDIA NIM API Tutorial: Get a Free Key, Make a Call
From an empty build.nvidia.com account to a streaming call: getting the nvapi- key, the base URL, curl, Python and Node, the three errors that actually happen, and what to do when the free credits run out.
Read more →NVIDIA NIM Models: All 102, and Which Ones Are Free
Only 44 of the 102 models on NVIDIA NIM are NVIDIA's own. The vendor breakdown, the 24 Nemotron variants decoded, and which of them you can reach without billing.
Read more →Why Parameter Count Is a Bad Predictor of VRAM
Phi-3.5-mini needs almost twice the VRAM of Gemma 3 27B at a 128K context. Why the KV cache decides what fits, not parameter count, across Llama, Qwen, DeepSeek and gpt-oss.
Read more →How to Call a Free LLM API in Node.js (OpenAI SDK)
Node and JavaScript quickstart: the OpenAI npm package, native fetch, streaming, retry on 429, and keeping your key server side.
Read more →A Free LLM API for n8n Workflows (OpenAI-Compatible Setup)
Two ways to give n8n a free model backend: the OpenAI credential with a custom base URL, or the HTTP Request node that works on every version.
Read more →An OpenRouter Free Alternative in 2026 (Honest Comparison)
A fair comparison: where each one fits, when to stay on OpenRouter, and why using both together is often the right answer.
Read more →The Best freellmapi Alternative in 2026 (Hosted, No Setup)
A freellmapi alternative you do not self-host: a hosted, OpenAI-compatible endpoint with failover and streaming.
Read more →Every AI Model in 2026: The Complete List of 279 Models
The full 2026 AI model landscape in one place: 279 models across 24 labs, with an interactive, filterable catalog.
Read more →The Best Free LLM API in 2026 (OpenAI-Compatible Key)
One free, OpenAI-compatible endpoint that routes across many providers with automatic failover. One free key, no credit card.
Read more →Free ChatGPT API Alternative: GPT-Class Models, No Cost
Keep your OpenAI code, change one line, and stop paying per token. How a free ChatGPT API alternative works.
Read more →Is the Gemini API Free to Use? Yes, Within Limits
Yes, and it is a standing free tier rather than an expiring trial. The rate limits, the data-use caveat, and how to control Gemini thinking per request.
Read more →Is the Llama API Free? Yes: Llama 3.3 70B at No Cost
Yes, but "free Llama API" always means somebody else pays for the GPU. The three routes that do it legitimately, and how to call Llama 3.3 70B without a card.
Read more →Free DeepSeek API: Access DeepSeek V3 Without a Credit Card
Call DeepSeek V3 for free through an OpenAI-compatible endpoint, no credit card required.
Read more →Free OpenAI-Compatible API: Just Switch Your base_url
The fastest migration you will ever do: change base_url, keep every line of your OpenAI code, pay nothing.
Read more →Free LLM API for AI Agents: LangChain, CrewAI, AutoGen
Give your autonomous agents a free, resilient model backend that survives a single provider's rate limit.
Read more →A Free LLM Backend for MCP Servers and Agents
MCP connects your agent to tools. DreamPrompting fills the model slot, for free.
Read more →24 Free LLM APIs Compared in 2026 (Groq, Gemini, Cerebras)
The free-tier landscape in 2026, which providers actually stay free, and how to use them all behind one API.
Read more →Free AI Chat, No Subscription: Llama, Gemini, DeepSeek
Sign in with Google and start chatting with the best free models. No subscription, no credit card, no per-message cost.
Read more →Free Qwen API: Use Alibaba's Qwen Models at No Cost
Call Qwen for free through one OpenAI-compatible endpoint, strong at multilingual tasks and code.
Read more →Free Mistral API: Call Mistral and Codestral for Free
Use Mistral and Codestral for free through a single OpenAI-compatible endpoint.
Read more →Free Groq API: The Fastest Free LLM Inference in 2026
Tap Groq's blazing-fast inference for free, no key juggling, through one endpoint.
Read more →How to Call a Free LLM API in Python (OpenAI SDK)
A copy-paste Python quickstart for a free LLM API using the OpenAI SDK.
Read more →Streaming a Free LLM API: Server-Sent Events Explained
Stream responses token by token from a free LLM API using standard SSE.
Read more →Free LLM API for Coding: DeepSeek, Qwen and Codestral
Free code-capable models (DeepSeek, Qwen, Codestral) behind one endpoint for your coding tools.
Read more →Free GPT-OSS API: OpenAI's Open Model at No Cost
Run OpenAI's open-weight GPT-OSS model for free through one OpenAI-compatible endpoint.
Read more →How to Get a Free LLM API Key (No Credit Card Required)
Sign in, copy your key, start calling models. No credit card, no waiting list.
Read more →NVIDIA NIM API Endpoint URL: /v1/chat/completions, Free
The NIM endpoint URL, whether NIM is really free, and why large models cold start.
Read more →The Free AI API for Developers (OpenAI-Compatible, Free Key)
Prototype without a bill: a free, OpenAI-compatible AI API built for developers.
Read more →Free provider & model guides
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