Free Tier
SiliconFlow
Multi-model inference API
About ¥14 / on the order of 20 million tokens (recorded benefit; not directly confirmed on the current official page)
Verified: 2026-08-28 · Medium confidence
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Verified Free Tier
AI/API free quotas and free tiers
Only records with an official entry point and a verification date are listed. Allowances, rates and validity periods change; any field this page cannot confirm is explicitly marked Unknown.
Free Tier
OpenRouter
OpenAI-compatible multi-model routing API
25+ Free models; the Free plan applies only to free models (official Pricing)
Verified: 2026-08-28 · High confidence
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Together AI
Open-model inference API
$1 initial credit (recorded benefit; not directly confirmed on the current official page)
Verified: 2026-08-28 · Medium confidence
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Groq
High-speed open-model inference API
Free tier; fixed token allowance Unknown
Verified: 2026-08-28 · Medium confidence
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Google Gemini
Gemini API
Official Pricing explicitly lists a Free Tier; input and output for the listed models can be used free of charge
Verified: 2026-08-28 · High confidence
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NVIDIA NIM
API Catalog model inference plus NIM self-hosting
The NVIDIA Developer Program provides free tools and learning resources for developers; the API Catalog explicitly offers Free serverless APIs for development; fixed API credits/allowance are not published
Verified: 2026-08-29 · Medium confidence
View free conditions →Free Tier
Cerebras
Cerebras Inference API
Official Pricing explicitly provides a Free tier; the Developer tier starts at $10 and has 10x the rate of the Free tier
Verified: 2026-08-28 · High confidence
View free conditions →Free Tier
Cohere
Command / Embed / Rerank API
A Trial API key is generated automatically when the account is created (official Pricing FAQ)
Verified: 2026-08-28 · High confidence
View free conditions →Free Tier
Hugging Face
Inference Providers / model inference
Official documentation explicitly includes a generous free tier; PRO users have additional credits
Verified: 2026-08-28 · High confidence
View free conditions →Free Tier
Zhipu AI (GLM)
GLM API
New-user trial credit; the specific amount depends on official promotions
Verified: 2026-08-28 · Medium confidence
View free conditions →Free Tier
Alibaba Cloud Model Studio (Tongyi)
Tongyi series model API
New-user trial credit; some models have a daily free call quota
Verified: 2026-08-28 · Medium confidence
View free conditions →Free Tier
Baidu Qianfan (ERNIE)
ERNIE and multi-model API
New-user resource package/voucher; the amount depends on official promotions
Verified: 2026-08-28 · Low confidence
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Agnes AI
Agnes API Hub
agnes-2.0-flash input/output $0 / 1M (existing official records; the current home page does not directly show pricing details)
Verified: 2026-08-28 · Medium confidence
View free conditions →Free Tier
Cloudflare Workers AI
Workers AI inference API / REST API
Official Pricing states: 10,000 Neurons per day free; applies to Workers Free and Paid plans
Verified: 2026-08-29 · High confidence
View free conditions →Free Tier
Fireworks AI
Serverless Inference API
Official Pricing states: $1 free credits provided when you start using the service
Verified: 2026-08-29 · High confidence
View free conditions →Free Tier
Mistral AI
Open-weight models / self-hosted inference
The official pricing FAQ states that open-weight models can be self-hosted; Mistral 7B and similar are Apache 2.0 for research/individual use
Verified: 2026-08-29 · High confidence
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