Eligible accounts can receive a one-time inference credit after adding a valid payment method. It is for development and evaluation; access pauses when credits expire or run out, and paid usage requires a separate purchase.
Credits：One-time US$5 inference credits
Eligibility：Meet the official trial eligibility and add a valid payment method.
Benefit validity：Valid for 30 days from activation, or until credits are exhausted.
Last checked：2026-10-09 17:00
查看原始出处 ↗Check eligibility against the official terms.
Workers AI provides a daily free inference allocation on eligible models. Neurons measure compute rather than requests or tokens; some models require paid or prepaid access.
Free services：10,000 free Neurons per day
Eligibility：Workers Free or Paid accounts using models and request paths covered by the free allocation.
Benefit validity：The daily allocation resets at 00:00 UTC.
Last checked：2026-10-09 17:00
查看原始出处 ↗Check eligibility against the official terms.
Exa’s free tier provides monthly AI-search credits without a payment method. Completing dashboard onboarding gives the first team a one-time bonus; search, contents and Agent endpoints have different credit costs.
Credits：US$10 monthly credits plus a US$10 first-team onboarding bonus
Eligibility：Use an Exa free-tier account; the one-time bonus requires the first team to complete dashboard onboarding.
Benefit validity：The free balance resets on the first of each month; the onboarding bonus is one-time.
Last checked：2026-10-09 17:00
查看原始出处 ↗Check eligibility against the official terms.
Firecrawl’s free plan provides monthly web-data credits without a credit card. Endpoints and advanced formats have different costs and share one balance; paid plans have separate automatic credit top-ups.
Credits：1,000 credits per month
Eligibility：Use an official Free Plan account.
Benefit validity：Free credits refresh monthly; check the account for the cycle and balance.
Last checked：2026-10-09 17:00
查看原始出处 ↗Check eligibility against the official terms.
Mistral’s default Free mode supports API evaluation and prototyping. Requests, throughput and monthly usage are limited across an organization’s workspaces; chat and coding plan budgets are separate.
Free services：Limited API usage in Free mode
Eligibility：Use an organization account in Free mode in the official Mistral console.
Benefit validity：Free mode follows the organization’s and model’s current request, minute and monthly usage windows.
Last checked：2026-10-09 17:00
查看原始出处 ↗Check eligibility against the official terms.
Use models listed with free variants through one API for experiments and light usage. Request limits apply; the higher daily allowance requires a credit purchase.
Free services：Free models: 50 requests per day and 20 per minute
Eligibility：An OpenRouter account using a :free variant actually listed in the current catalog.
Benefit validity：Daily and per-minute limits apply; model availability and free terms follow the current official catalog.
Last checked：2026-10-09 17:00
查看原始出处 ↗Check eligibility against the official terms.