Nebius AI Studio is a European AI cloud offering an OpenAI-compatible API to 60+ open-source LLMs; it provides high-performance inference-as-a-service with European data residency and transparent pay-as-you-go pricing.

AI Studio: ~$1 trial credit for new accounts (early $100-era promos ended; startup program can grant far more); plus ongoing free API for select open models (Llama 3.3 70B, Qwen3-235B) with tier-based rate limits.

Nebius AI Studio is a European-based GPU cloud platform providing managed inference for top open-source LLMs like Llama 3.1 and DeepSeek R1. It leverages its own EU data centers to offer high-performance, privacy-compliant inference with transparent pay-as-you-go pricing tailored for both developers and enterprises.

AI Studio grants new accounts ~$1 one-time trial credit (startup/promo programs can grant far more); Nebius AI Cloud free-trial program suspended as of 2026-07-13; studio models otherwise pay-as-you-go.

OVHcloud AI Endpoints is an inference API from the established European cloud provider OVHcloud. It offers OpenAI-compatible access to open-weight models with anonymous and registered free tiers for developers.

AI Endpoints free tier: rate-limited calls with no/empty API key; registered users get higher limits. No token quota or rate numbers published - not quantifiable. Totals subject to policy change.

Rev AI (rev.com API) offers machine transcription (Reverb/Reverb Turbo), translation, summarization and voice agents, plus human transcription. Pay-as-you-go API with free signup credits equivalent to 5 hours of Reverb ASR (usable on all products); volume-based pricing; enterprise options with dedicated account management.

Free credits equivalent to 5 hours of Reverb ASR (official pricing page). At Reverb's published rate of $0.20/hour (via pricing-page search snippet), 5h ≈ $1.00.

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).

iFlytek Spark (Xunfei Xinghuo) is a large model platform providing access to the Spark LLM family. It offers a permanently free Spark Lite version and significant one-time token allowances for newer users. The API is OpenAI-compatible and supports various modalities including text, image, and voice.

Spark Lite: unlimited tokens, QPS 2, no expiry (permanently free - unquantifiable); each version ~2M free tokens for ~1 year; campaigns grant 100M Spark Max tokens. OpenAI-style /v1 endpoint, console API Password.

JuCodex is a Chinese-market AI relay specializing in coding models, reselling access to OpenAI's Codex and GPT-4 variants. It features a custom ratio system for billing and provides a small initial credit for new accounts to test compatibility with IDE extensions.

One-off new-user credit: 6 RMB (≈$0.89) on signup (QQ-email only), ratios as low as 0.15; only 1 free entry in /api/pricing, no sustained free quota, essentially pay-as-you-go.

DeepSeek (chat.deepseek.com) — free official web chat serving the DeepSeek model family. Unofficial browser/cookie integration (merged into existing 'deepseek' row).

5M free tokens on sign-up; estimated value based on V4-Flash peak rates.

Aion Labs provides specialized fine-tuned models for immersive roleplay and storytelling. Its API is OpenAI-compatible and features a long-term daily free allowance for developers, with higher tiers available upon account top-up.

Daily allowance of ~20K tokens equates to ~$0.50/mo in nominal value.

DXNT (DX Token) is an AI model API gateway providing unified access to GLM, Kimi, MiniMax, and DeepSeek. It offers high compatibility with IDEs and agents, featuring smart routing and MCP support. Details were checked against the provider's own page at dxnt.com.

100+ free calls daily on unified entry.

Novita AI is a developer-focused inference cloud offering an OpenAI-compatible API to models like DeepSeek, Qwen, and Llama. New users receive a $0.50 trial credit; service is otherwise pay-as-you-go with very low latency.

~$0.50 free credit for new users to test text/image APIs (~60 RPM); referral program gives $10 to each side up to $500 total (promotional); pay-as-you-go once credit is used.

PiAPI offers a model aggregation platform with native API formats. It provides subscription tiers that include bonus credits and pay-as-you-go usage. New users receive a $0.50 starting credit. Details were checked against the provider's own page at piapi.ai.

No public free-tier information found (researched 2026-08-29).

CloudCode.ONE is a commercial AI proxy optimized for coding workflows (e.g., Claude Code), offering pay-as-you-go access to high-performance models like DeepSeek V4 Pro as a backend replacement with a small trial credit.

Reported signup trial credit of approx. $0.48 (RMB 3.5).

SearchAPI: Google/Bing/Bing/30+ engines SERP API — structured JSON results in seconds; billed only for successful 200-status searches; 100 free requests at signup (no card); prepaid subscription plans $40-$5,000/mo (Developer 10k searches at $4/1k down to Octo 5M at $1/1k); rate limit = 20% of plan credits/hour; up to $2M legal protection guarantee.

100 free signup requests × $0.004/search (Developer plan rate $4/1k) ≈ $0.40 one-time value.

NexoToken is a commercial aggregation relay covering 130+ LLMs with an OpenAI-compatible /v1 endpoint. It uses an ultra-low-multiplier (0.01x-0.03x) billing system and offers a daily refreshing free quota for ~40 models.

~40 models offer daily free quotas that auto-refresh the next day (including some Claude/GPT/Gemini models); claims of sign-up bonus and 7-day no-questions refund are platform self-promotion — actual amounts per the console.

Scaleway Generative APIs offer a serverless, OpenAI-compatible endpoint for deploying open LLMs. Hosted in Europe, it emphasizes data sovereignty and grants 1,000,000 free tokens to all customers to jumpstart development.

Value based on 1M input tokens at standard rate (approx €0.2).

BazaarLink is a Taiwan-based AI aggregator providing access to 100+ models via an OpenAI-compatible API. It specializes in TWD billing and unified enterprise invoices. It offers a small signup credit and a persistent free model tier.

Signup trial credit ~$0.20 (probe, no card, no waitlist) counted; plus persistent free deepseek-v4-flash (~10 RPM / 150 RPD) and auto:free routing; PAYG at upstream list price after credit is spent.

Jeniya (jeniya.cn) is an anonymously operated Chinese AI API relay reselling access to Claude, GPT, and Grok models via a unified OpenAI-compatible endpoint. It uses the One-API panel for management and supports domestic payment methods like Alipay and WeChat.

Operator API docs (jeniya-top.apifox.cn, 2025-05): new users get $0.2 usage credit on registration. Affiliate SEO pages claim a 100 CNY test quota (unverified); core is a paid top-up relay.

Fish Audio is a TTS platform hosting 2M+ community voices with instant voice cloning (10s of audio), 60+ emotion tags, and sub-300ms streaming latency. Credit-based: ~600-625 credits per minute of audio; free plan includes monthly free generations (personal use only); Premium unlocks pay-as-you-go API and commercial rights; yearly billing saves 33%.

Free plan grants free generations each month, but the exact free minute/credit count is rendered by JavaScript and not captured from the plan page; USD value not reliably quantifiable from fetched content.

ProRiseHub is a paid top-up relay built on the New API framework, OpenAI-compatible at /v1. Documentation states top-ups are converted at a rate of 1 RMB ≈ $0.15 USD credit, with several dozen zero-priced models.

Mainly paid top-up (1 RMB (≈$0.15) = 1 USD credit); no general signup bonus mentioned; ~51 zero-priced models in /api/pricing.

Levolink is an anonymously operated Chinese AI API relay built on the New-API framework. It aggregates a vast array of models (500+) including GPT, Claude, Gemini, and Doubao, primarily targeting the RMB-based domestic market with cheap top-ups.

Grants 1 RMB (~$0.12) test credit upon registration.

Cloudflare Workers AI allows running AI models on Cloudflare's global network. It provides an OpenAI-compatible API for inference, embeddings, and image generation, billed in compute 'Neurons'. Details were checked against the provider's own page at developers.cloudflare.com.

10,000 Neurons per day free allowance.

HuggingChat (huggingface.co/chat) — Hugging Face's free chat app for open-source models (Omni auto-routing + Llama, Qwen, DeepSeek, etc.). Unofficial browser/cookie integration (merged into existing 'huggingface-co' row).

Official monthly inference credits: $0.10/mo for Free users, $2.00 for PRO, $2.00/seat Team/Enterprise; Serverless Inference free allowance for models under 10GB. Subject to change.

Nomic AI provides the Atlas Embedding API and open-weight models like nomic-embed. It offers a monthly free tier for its embedding API and is transitioning to focus on document AI for specialized industries.

Atlas embedding API free tier ~1M embedding tokens/month for evaluation and prototyping; ~$0.10/mo equivalent at Nomic embed pricing (~$0.10/1M tokens); paid beyond that.