Free AI quota · Free AI Index

Keenable · Search API free quota

100,000 requests / month · no card

Monthly quota; overage metered · Global · cloud only

Search 30 / min · Fetch 150 URLs / min

Free while service rules continue · Global · no card

1,000 API credits / month

Monthly credits; advanced calls cost more · Global · API key

$10 credits / month · $20 signup credits

Monthly credits; PAYG after upgrade · Global · no payment method

100 Search queries / day + $100 credits

Daily free tier; PAYG API prices · Global · API key or keyless tier

1,000 credits / month · 500 searches or 1,000 pages

Monthly free credits · Global · no card

$5 free credits / month

Monthly credits; Search $5 / 1,000 · Global · API key

1 browser hour + 1,000 Search + 1,000 Fetch calls

Free plan; 15-minute sessions · Global · 3 concurrent browsers

Free tier: input, output and context caching listed as Free of charge

Ongoing free tier; limits and terms can change · Google account; availability may vary by region

Free plan with per-model RPM / RPD / TPM limits (e.g. gpt-oss-120b: 30 RPM · 1K RPD · 8K TPM)

Ongoing free plan; exact limits per model can change · Groq account; rate limits apply at organization level

:free variants: 20 req/min; 50 req/day (under 10 credits purchased) or 1000 req/day (10+ credits)

Ongoing free usage limits; caps can change · OpenRouter account; daily caps depend on lifetime credit purchases

Free mode (default): lowest rate limits, intended for evaluation and prototyping

Ongoing default tier; limits can change · Mistral account

Generous free tier included; additional credits for PRO users and organizations

Monthly included credits; unused quota does not roll over · Hugging Face account

Selected models listed at ¥0 (free) on the official price list, plus paid models

Free listing can change; recheck the price page · SiliconFlow account; China registration

API-Inference is free for registered users; dynamic rate limits and 魔粒 (MoLi) deduction apply

Ongoing free service; model list iterates as new open models release · ModelScope account + Aliyun binding + real-name verification