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GPT-OSS 120B: free via FreeLLMAPI

GPT-OSS 120B: served free by 6 providers, up to 131K context, tool calling. Provider limits, quotas and setup examples on FreeLLMAPI.

Cloudflare Workers AI

@cf/openai/gpt-oss-120b
Context window131K tokens
Free budget~18-45M tokens/mo
Rate limitsnot published
Key is account_id:token info
Cloudflare Workers AI authenticates with a combined credential in the form "account_id:token", not a bare token.
Needs token room info
This route can spend hidden reasoning tokens before visible output. Avoid tiny max_tokens values or the request can finish by length with empty content.

Groq

openai/gpt-oss-120b
Context window131K tokens
Free budget~6M tokens/mo
Requests / min30 RPM
Requests / day1K RPD
Tokens / min8K TPM
Tokens / day200K TPD

Ollama Cloud

gpt-oss:120b
Context window131K tokens
Free budget~10-20M tokens/mo
Rate limitsnot published

OVH AI Endpoints

gpt-oss-120b
Context window131K tokens
Free budgetfree · 2/min per IP tokens/mo
Requests / min2 RPM
Anonymous tier is 2 req/min warning
OVH AI Endpoints anonymous mode is documented at 2 req/min per IP per model (observed even stricter across models). The 400 req/min authenticated tier requires a Public Cloud project with a payment method, so the catalog ships the keyless path. Treat as a breadth/fallback tier, not a throughput tier.
No API key required info
Routes anonymously — the catalog ships a keyless sentinel row and calls work with no account or key.

HuggingFace Router

openai/gpt-oss-120b
Context window131K tokens
Free budget$0.10/mo credit tokens/mo
Rate limitsnot published
Small $0.10/month routed credit warning
HuggingFace Inference Providers grants only ~$0.10/month of routed credit on the free tier (PRO is $2/month). Enough for light experimentation; exhausts quickly. Credits apply only to HF-routed requests.
Monthly included credits run out info
HuggingFace meters Inference Providers in dollars, not tokens: free accounts get $0.10 credited every month. When it is spent every route answers 402 "You have depleted your monthly included credits", as happened during the September 18, 2026 audit. This is a spent-wallet state, not a dead route, and it clears when the monthly grant renews. Rows are kept enabled and the router should treat 402 here as a provider-level cooldown to the start of next month rather than a per-model failure.

Sail Research

openai/gpt-oss-120b
Context window131K tokens
Free budget$5/month recurring credit · payment method required tokens/mo
Rate limitsnot published
Monthly credit requires a payment method warning
Sail grants $5 in free credits each month only while a payment method is attached. Usage becomes pay-as-you-go after that credit is exhausted, so configure Sail spend controls and monitor the account balance. Requests run as background jobs and may remain queued for several minutes.

Get this model the moment it changes

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Use it

FreeLLMAPI is a self-hosted router you run yourself. Install it, paste in your free Cloudflare Workers AI key, and @cf/openai/gpt-oss-120b answers on an OpenAI-compatible endpoint at http://localhost:3001/v1. No credit card, no hosted middleman: your prompts and your provider keys never leave your machine.

Install the router (macOS, Linux, WSL)
curl -fsSL https://freellmapi.co/install.sh | bash
Install the router (Windows PowerShell)
iwr -useb https://freellmapi.co/install.ps1 | iex
Call @cf/openai/gpt-oss-120b with curl
curl http://localhost:3001/v1/chat/completions \
  -H "Authorization: Bearer freellmapi-your-unified-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "@cf/openai/gpt-oss-120b",
    "messages": [{"role": "user", "content": "Say hi in five words."}]
  }'
The same request in Python (openai)
from openai import OpenAI

client = OpenAI(
    base_url="http://localhost:3001/v1",
    api_key="freellmapi-your-unified-key",
)

resp = client.chat.completions.create(
    model="@cf/openai/gpt-oss-120b",
    messages=[{"role": "user", "content": "Say hi in five words."}],
)
print(resp.choices[0].message.content)

The router answers on /v1/chat/completions and every other OpenAI surface, plus the Anthropic Messages API, so existing clients need only a new base_url. Swap the model id for auto and the router picks the best free model that is still under its limits. Full reference: docs/api.md.