AI API Router Directory

Brave Search API: real-time web search (LLM-optimized context, news, images, videos) and Answers endpoint, powered by Brave's independent index of 30B+ pages. 50 req/s capacity on search; $5 free credits auto-applied monthly; credit card required as anti-fraud. SOC 2 Type II attested, zero-data-retention options.

$5 free credit auto-applied to account every month (per brave.com/search/api and API dashboard pricing page).

EasyMax (Easy API) is a multi-model aggregation gateway compatible with OpenAI and Claude API protocols. It focuses on stability and pricing, supporting GPT, Gemini, and image generation models. Details were checked against the provider's own page at easymax.ai.

Relay with ~5-8 free model entries on /api/pricing; V2EX promo grants $5 trial credit for forum reply (one-time, promotional). Continuous free quota limited; low-cost paid top-ups.

Nscale's Serverless Inference is an OpenAI-compatible endpoint service for open models - the catalogue pages list Meta Llama 4 Scout, Alibaba Qwen, DeepSeek, OpenAI GPT OSS 20B/120B, Mistral 8x22B Instruct, FLUX.1 [schnell] and Stable Diffusion XL Base 1.0 - with token-based pay-as-you-go billing. Per Nscale's own launch materials, pricing is based on input and output tokens for text and vision models, while image generation is priced on output image dimensions. Per-token rates are not published on a static official page: the docs direct users to the console's AI Services to Models list or the /v1/models API endpoint for pricing and context length. Every new user can claim $5 of free credit, and Nscale states the platform does not log or train on request or response content.

Every new user can claim $5 of free credit, stated in Nscale's Serverless Inference launch post (2 April 2025) and in its announcement that pricing is based on input and output tokens for text and vision models.

Pollinations.ai is a Berlin-based open-source platform providing a signup-free, OpenAI-compatible API for text, image, and audio generation. It aggregates multiple open-weights models (DeepSeek, Qwen, Mistral) and offers them for free to foster creative AI development.

Basic use needs no signup and no API key; new Pollen credit system gives ~1.5 Pollen/week free, with some models/higher limits requiring an account or paid tier. Pollen has no published USD rate - not quantifiable.

Serper: fast (1-2s) Google SERP API — web, news, images, places, scholar, patents, videos, shopping, autocomplete as structured JSON. Credit-based prepaid billing: 2,500 free credits on signup, $1.00/1k base dropping to $0.30/1k at volume; credits valid 6 months; failed requests not billed. (Official pricing page is 404 — figures corroborated across multiple independent 2026 sources.)

2,500 free signup credits × $1.00/1k base rate ≈ $2.50 (one-time, credits expire in 6 months).

Agnes AI, developed by Singapore-based Sapiens AI, is an omni-modal AI platform offering indefinitely free access to core text, image, and video models. It supports OpenAI-compatible API keys and tiered 'Token Plans' for production-level throughput.

Advertised as indefinitely free core-model API with rate/volume caps; signup probe hints ~$1 starter credit (counted). Free tier reportedly sufficient for individual developers and demos.

Hyperbolic (hyperbolic.xyz) is the API-specific endpoint for Hyperbolic's AI cloud. It provides serverless inference for over 25 open-source models through an OpenAI-compatible /v1 endpoint. The platform supports text, image, and audio generation with pay-as-you-go pricing.

~$1 trial credit for new users (DeepSeek V3, Llama 3.1 405B, Qwen); pay-as-you-go after it is used (Llama 405B ~$4/M, DeepSeek R1 ~$3/M tokens).

Venice (venice.ai) — privacy-focused web app (anonymous or zero-retention) for chat, image, video and audio, known for self-hosted open-weight models plus TEE-hosted closed models. Unofficial browser/cookie integration (merged into existing 'venice' row).

Credits are USD-denominated; Pro $18/mo → $1 credit, Pro+ $68/mo → $75 credit (10% bonus), Max $200/mo → $225 credit (12.5% bonus).

Stability AI sells hosted generative media through a credit-based developer API plus a separate subscription studio. The developer pricing page states API usage is credit-based with 1 credit = $0.01, and lists per-operation credits: Stable Image Ultra 8 credits, Stable Diffusion 3.5 Large 6.5, SD 3.5 Large Turbo 4, SD 3.5 Medium 3.5, SD 3.5 Flash 2.5, Stable Image Core 3, SDXL 1.0 from 0.9, Creative Upscaler 60, Stable Audio 3.0 26 and Stable Fast 3D 10. New developer accounts get 25 free credits, i.e. about $0.25 of usage. The separate Brand Studio product free tier is stated at 1000 credits, then $19/month for 2000 credits or $50/month for 5000 credits, with unused credits not rolling over.

25 free credits for new accounts, stated on platform.stability.ai/pricing alongside the fixed rate "1 credit = $0.01" - equivalent to about $0.25.

Cloudflare Workers AI serves open-weight models on Cloudflare's edge network, metered in Neurons ($0.011 per 1,000). Every account — including the Free plan — gets 10,000 Neurons per day free, resetting at 00:00 UTC; beyond that, the Paid plan bills usage. The catalog spans LLMs, embeddings, image and audio models and sits next to your Workers apps.

10,000 Neurons/day free on all plans (reset 00:00 UTC) ≈ $0.11/day ≈ $3.30/month at full use; overage $0.011 per 1,000 Neurons on the Paid plan.

Inner AI (innerai.com / app.innerai.com) is a multi-model AI productivity app (chat, image/audio/slide generation, custom assistants). Access via this route is an unofficial web-cookie integration (token cookie + account email). Official pricing page documents Lite and Pro plans with GPT-5 Mini/DeepSeek 3.1 +5 fast models, GPT-5/Claude 4.6 Sonnet +5 advanced models, and credit-based generation (Nano Banana, ElevenLabs, Gamma +25). Third-party sources report a 7-day free trial/money-back guarantee rather than a perpetual free tier.

Derived: Pro plan ($15/mo) includes 10,000 monthly generation credits (pt innerai.com/pricing) -> ~$0.0015/credit.

AI Horde (Stable Horde) is a free, volunteer-run, community-powered network of donated GPUs that generates AI images (Stable Diffusion, SDXL, Flux and other diffusion models) and text. Anonymous access is available with the shared key 0000000000 at lowest priority; registering for kudos raises priority.

Free kudos-based system; no quantified monthly USD credit.

AI/ML API is a major AI model aggregator providing unified access to 1000+ models from OpenAI, Anthropic, Google, DeepSeek, and more. It offers a single API key for LLM, image, voice, and video models with a focus on production-ready pay-as-you-go access.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

Adapta One (adapta.org / agent.adapta.one) — Brazilian multi-model AI subscription ('maior ecossistema de IA generativa do Brasil') bundling 15+ chat and image models (GPT, Claude, Gemini, DeepSeek, Qwen, Llama, Grok, Kimi, Flux, Nano Banana, etc.) in one chat with documents/spreadsheet analysis. Unofficial browser/cookie integration.

Flat R$99/user/month (≈US$18) with unlimited access to the bundled models; annual option R$1,428/year (12× R$119 with 2+ seats).

Adobe Firefly is Adobe's generative image, video and audio product, sold through Firefly plans that bundle monthly generative credits and available to developers as the Firefly API inside Firefly Services. Firefly Standard is US$9.99/month with 2,000 generative credits, Pro is US$19.99/month with 4,000 credits, Pro Plus is regularly US$49.99/month (promotional US$34.97 for the first year) with 10,000 credits, and Premium is regularly US$199.99/month (promotional US$139.91) with 50,000 credits. Adobe publishes no numeric free-tier credit: free users get a limited number of free daily generations across Firefly, Express, Stock, Photoshop on the web, Acrobat and Adobe mobile apps on a curated set of models, with the number of generations, features and models subject to change.

No numeric free credit is stated on official pages: Adobe describes free access only as a limited number of free daily generations on a curated set of models, with counts subject to change; the smallest paid grant is 2,000 generative credits per month at US$9.99/month (adobe.com plans page and Adobe generative credits FAQ, checked 2026-09-16).

Alibaba Cloud Model Studio (Bailian, 百炼) is Alibaba Cloud's managed model platform, hosting Qwen and third-party models across text, image, audio and video with pay-as-you-go billing per million tokens in CNY. The cn-beijing list rates on the official price page include qwen-long at 0.5 CNY per million input tokens and 2 CNY per million output tokens, qwq-plus at 1.6 CNY input and 4 CNY output, and deepseek-v3.2-exp at 2 CNY input and 3 CNY output, while international-deployment rates are materially higher (qwq-plus international: 5.871 CNY input, 17.614 CNY output). The price page states it shows list prices only ('原价') and that promotional pricing lives in the console, and pricing is tiered so a single request's token volume sets the unit price for that whole request.

Token allowance, not cash: first activation of Bailian grants a per-model free inference quota of typically 1,000,000 tokens (input and output combined, cn-beijing only, valid 90 days) per help.aliyun.com/zh/model-studio/new-free-quota; no USD-convertible value is published (checked 2026-09-16).

Arena.ai (formerly LMArena / Chatbot Arena, lmarena.ai) is a free, anonymous multi-model chat + blind A/B voting service that powers the public LLM/image/code leaderboards. It rotates a large lineup of frontier and open models. This route is an unofficial web-cookie integration (arena-auth cookie, optional Cloudflare clearance/reCAPTCHA tokens); the site also supports anonymous sessions but automated access is rate-limited and subject to bot checks.

A free tier is available; the exact credit value is not quantified.

Baidu ERNIE models are served through the Baidu Qianfan model service and Agent development platform on Baidu Cloud, alongside third-party models such as DeepSeek, Kimi and Qwen. From 24 October 2025, users who open Qianfan and accept the user agreement automatically receive new-user free token quota: 17 listed preset models each grant 1,000,000 tokens valid for 3 months, including ERNIE-4.5-Turbo-128K, ERNIE-4.5-Turbo-32K, ERNIE-4.5-Turbo-VL, ERNIE-X1-Turbo-32K, bge-large-en and bge-large-zh. Free quota offsets online inference of preset models only, not batch inference, and verified unit prices on the billing page include embeddings at 0.0005 CNY per thousand tokens, image generation from 0.05 CNY per image, and web search augmentation at 0.004 CNY per triggered search.

Official page states a new-user grant of 1,000,000 tokens on each of 17 preset models, valid 3 months (cloud.baidu.com Qianfan new-user free quota doc); no USD value is given and the ERNIE text-model unit-price table did not render on the official billing page, so no conversion was made (checked 2026-09-16).

Black Forest Labs runs the hosted FLUX model API with a credit system where 1 credit equals USD $0.01, charged per image for stills and per second for video. FLUX 3 video costs $0.17/s at HD, $0.29/s FHD, $0.40/s QHD and $0.80/s UHD for text- and image-to-video, while video-to-video (continuation, editing, restyling) runs $0.41-$0.95/s; a draft tier renders HD at $0.06/s. FLUX.2 images start at $0.014 for [klein] 4B and rise to $0.07 for [max], with editing at $0.045 for [pro]. Clips are capped at 20 seconds and synchronized audio is included at no extra charge.

No free credit grant is stated on official pages; docs.bfl.ai/quick_start/get_started instructs users to add credits (suggesting $10-20 to start) with no signup bonus (checked 2026-09-16).

ChatGPT's free tier is available to everyone and is described on the official pricing page as unlimited text chats with GPT-5.6 Luna subject to abuse guardrails, with limited messages when uploading files, limited and slower image generation, limited voice chats, limited deep research, limited memory and context, limited Codex access and limited ChatGPT Work access on desktop. Paid plans are priced per user per month at $8 (Go), $20 (Plus) and $200 (Pro) as announced by OpenAI on 16 January 2026, with Business and Enterprise offered monthly or annually.

No free credit or USD allowance is stated for ChatGPT on the official pricing page or the ChatGPT Go announcement (checked 2026-09-16); the free tier is a feature-limited plan, not a credit.

DeepAI bundles its image APIs into the DeepAI Pro subscription instead of publishing per-call API pricing. Free access is $0 with no account balance needed and only 'Limited' allowances across HD images, chat, music and video. Pro costs $7.49/month billed annually at $89.99 (or $9.99 monthly with the renewal rate fixed) and includes 500 HD images, 60 Genius images, 10 Super Genius 2K images, 1,750 chat messages, 25 seconds of HD video, 8 seconds of 2K Hollywood Mode, 100 songs and 12 Concierge tasks per month. Overages draw on a prepaid wallet at 1 cent per HD image, 8 cents per Genius image, 25 cents per Super Genius 2K image, 20 cents per second of HD video and 10 cents per song.

The Free plan is $0 with no account balance needed and only 'Limited' allowances (HD images, chat, music, video); no credit quantity or USD value is stated, and API access is bundled with DeepAI Pro (checked 2026-09-16).

Duck.ai is DuckDuckGo's free, private AI chat (also surfaced at duckduckgo.com/duckchat). It requires no account and offers chat, voice, image, and search across models including OpenAI GPT (e.g., '5.6 Luna') and Claude.

Free anonymous chat; an 'Upgrade'/Pro option exists but pricing not quantified on fetched pages.

fal.ai runs a generative-media model API: 1,000+ endpoints across image, video, audio and 3D behind one queue-based HTTP interface, called with the same request/response shape from Python, JavaScript or raw HTTP. Pricing is per output rather than per token, as published on its pricing page: $0.03 per Seedream V4 image, $0.04 per Flux Kontext Pro image, $0.02 per megapixel for Qwen image, $0.05 per second of Wan 2.5 video, $0.07 per second of Kling 2.5 Turbo Pro and $0.40 per second of Veo 3 video. Dedicated GPU capacity is listed at $4.50/hr for H100 (as low as $1.89/hr), $4.50/hr for H200, $6.25/hr for B200 and $8.50/hr for B300. There is no free token allowance: fal runs on a prepaid credit balance that funds both model usage and the account's concurrency limit.

No free tier stated on official pages (checked 2026-09-16): fal.ai/pricing and the Model APIs pricing docs describe only prepaid credits, with no starter credit or free allowance.

Free.ai is an AI tool aggregator offering 477+ tools across chat, image, and video. It provides 30,000 free tokens daily for registered users and supports premium models like GPT-6 and Claude via paid plans. The platform features an in-browser IDE for deploying AI applications.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.