Kimi Code (Moonshot AI) - Kimi CLI and IDE coding agent; default model K2.7 Code; K3 offers up to 1M context (256K on Moderato, 1M on Allegretto and above); membership tiers in international USD (China CNY pricing differs).

Tiers recorded in international USD; China (CNY) pricing differs: Andante 49 CNY, Moderato 99, Allegretto 199, Allegro 699 per month.

Official Moonshot AI developer platform for Kimi models. Offers pay-as-you-go access to Kimi K3, K2.7-Code, and K2.6 over an OpenAI-compatible API. One-off trial credits available upon verification. Details were checked against the provider's own page at platform.moonshot.cn.

After phone-number verification, new users automatically receive a RMB 15 (≈$2.23) trial voucher credited to their balance, usable directly to offset API call costs; the voucher typically has a 30-day validity and cannot be used for the latest models such as K3. Once used up or expired, it converts to pay-as-you-go.

ChatAnywhere is a widely used free LLM relay. Users bind a GitHub account to get a free API key and access GPT-4o, Claude, and Gemini models through an OpenAI-compatible interface, optimized for access from mainland China.

GitHub-bound free key: 10,000 points/day with per-model caps (GPT-5/4o/4.1 5/day, DeepSeek 30/day, mini models 100/day, ~200 req/day total) ≈ $2/mo; personal non-commercial use only.

ChatAnywhere (GPT_API_free) is a widely used AI API relay providing unified access to global models including OpenAI, Claude, Gemini, and DeepSeek. It offers a GitHub-authorized free tier and low-cost paid access with endpoints optimized for users in mainland China and overseas.

Free keys, personal non-commercial only: ~200 req/day per IP&key (GPT-5/4o/4.1 5/day, DeepSeek 30/day, small models 200/day) ≈ $2/mo equivalent at typical token volumes.

Cohere provides enterprise-ready LLMs optimized for search, RAG, and agentic workflows. Its official API offers free Trial keys for development and evaluation, alongside high-performance production endpoints for models like Command R+ and the Aya multilingual series.

Trial key: 1,000 API calls/month (resets monthly, no card), Chat ~20 RPM, all models but non-production use only. ≈$2/mo assuming ~2K tokens/call at blended $1 per 1M tokens.

DuiAPI is a Chinese commercial-aggregator relay emphasizing compliant, ICP-registered access to official AI platforms. It supports Qwen, DeepSeek, and Kimi models through OpenAI and Anthropic compatible endpoints.

$2 signup trial credit reported.

ElevenLabs is a leading AI voice platform for ultra-realistic text-to-speech, voice cloning, dubbing, and conversational agents. Credit-based monthly plans: Free (10k credits ≈ 10k chars), Starter $6/mo (30k), Creator $22/mo (121k), Pro $99/mo, Scale $299/mo, Business $990/mo. Startup grants offer 12 months free with 33M characters.

Free plan includes 10,000 credits ≈ 10,000 characters/mo; valued at Starter plan rate of $6 per 30,000 chars ≈ $0.20/1k chars → ~$2.00/mo. Startup grant (12 months, 33M chars) not counted as recurring free tier.

RouterPark is a directory and monitoring site for unofficial and free AI model relays. It catalogues third-party Claude and GPT proxies, providing a dashboard for status and latency while offering its own unified entry point for multiple 'free' upstreams.

Directory is free/login-free; any.routerpark.com proxy (ANTHROPIC_BASE_URL) signup credit: site advertises $20 but probes report ~$2 (+~$10 for posting). Conservative: $2; quota depends on third-party relays.

Super NB (api.super-nb.me) is a Chinese AI API gateway providing OpenAI-compatible access to global LLM providers. It aggregates GPT and Claude models, offering a simplified top-up and usage experience for developers in the region through a New-API based interface.

Nodeloc partner post (2026-08-19): Nodeloc users get $2 signup credit plus weekly lottery and first-top-up promos; e7ai post mentions a claimable $50 subscription voucher. Core remains a paid top-up relay.

Unity2.Ai is a commercial AI infrastructure provider offering seamless access to top Chinese and global AI models (Claude, GPT, Gemini, DeepSeek) via a single OpenAI-compatible API. Features self-developed cluster architecture for high concurrency and smart upstream scheduling. Supports Alipay and WeChat via Stripe.

$2 sign-up credit; Linux.do/V2EX campaign activity (replies, votes, per-100-floors) can add $10-$100 (promotional, unverified terms). Core is pay-as-you-go; no long-term free flagship quota.

GitHub Models (models.github.ai) was an official model-inference platform by GitHub for prototyping. As of July 30, 2026, the service has been fully retired and the catalog/API are no longer available. Users are directed to Azure AI for production workloads.

Free with a GitHub account, no card; ~50 calls/day per higher-tier model (each model has own quota), 429s on heavy use; positioned for learning/prototyping. ~$1.5/mo equivalent at ~1K tokens/call.

OpenRouter is a commercial LLM gateway aggregating 500+ models from every major provider. It offers a single OpenAI-compatible API with a platform fee (5.5%) and a selection of free models for development.

:free models cost $0, no card; 20 req/min; 50 :free req/day with <10 credits, 1000/day after buying $10+ credits (verified FAQ; failed reqs count). ~$1.5/mo equivalent at 50 req/day, ~1K tokens/call.

Hvoy AI is a specialized diagnostic and directory site for third-party AI API gateways. It performs continuous latency, uptime, and model-adulteration testing to help developers benchmark and select relay providers. Mirrored at hvoyai.com.

The site is primarily a checker/comparison tool; minor perks: ~20 points on signup, ~10 points to claim one free token, ~20 points for sharing, plus an occasional ~5 CNY (≈$0.74) redeem code; it claims a small daily 'freebie' of reverse-proxied sonnet-4.6/gpt5.3 (e.g. ~50 sonnet4.6 calls/day), with no guaranteed quota or stability.

DeepAI offers a comprehensive suite of AI APIs for text-to-image, text generation, and audio. It features a $9.99/month Pro subscription that bundles substantial monthly allowances with affordable pay-as-you-go overage rates.

Estimated value of basic free allowance based on overage rates.

mx.236600.xyz is an anonymous commercial relay service on the New API framework. As of September 2026, the site is unreachable and appears to have ceased operations after advertising aggressive top-up multipliers and lottery schemes.

Almost no free tier — /api/pricing only lists GPT-5.4/5.5, codex-Pro and image models; core is pay-as-you-go via 'top up 1 RMB (≈$0.15) = $1 quota'. No public, sustained free quota.

APIPlus is a third-party AI API relay built on the New-API framework, reselling access to Claude, GPT, and Gemini. It offers a small registration credit and an intermittently available 'free channel' with deep discounts, primarily targeting the low-cost reseller market.

Grants ~$1 registration credit for new users.

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.

Bytez is an AI model hosting platform that offers an OpenAI-compatible API for a wide range of models. It provides $1 in free credits that refresh every 4 weeks and uses a low-cost pay-as-you-go pricing model.

$1 free credits, refreshes every 4 weeks

Electron Hub provides a unified API to 600+ models, including premium frontier models (GPT, Claude, Gemini). It offers weekly credit refills on both free and paid subscription plans, plus permanent top-ups.

$0.25 weekly credits on the Free plan.

FastRouter is a high-performance gateway for AI model routing, comparison, and operations. It supports 200+ models via an OpenAI-compatible API with intelligent cost optimization and failover. Details were checked against the provider's own page at fastrouter.ai.

Free credits included to build, test and explore.

Fireworks AI is a high-speed serverless inference platform for open-weights models (Llama, Qwen, DeepSeek). It provides an OpenAI-compatible API optimized for low latency and high throughput. Details were checked against the provider's own page at docs.fireworks.ai.

$1 free trial credit on sign-up.

HyperAgent (hyperagent.com) — fleet-of-AI-agents platform (research, docs, sites, decks, video). Plans convert monthly price 1:1 into spendable credits (up to 45% bonus); agents draw on hosted LLMs (Claude, ChatGPT, Kimi, etc.). Unofficial browser/cookie integration.

Every dollar of plan price returns as credit (1 credit = $1 of model spend); higher tiers add 10-45% bonus. Pay-as-you-go discontinued Aug 2026; top-ups via credit blocks.

Hyperbolic (hyperbolic.ai) is an open-access AI cloud providing high-performance serverless inference and GPU rentals. It offers an OpenAI-compatible API to 25+ open-source models including DeepSeek, Qwen, and Llama 3.1 405B. New users receive roughly $1 in trial credits upon phone verification.

~$1 trial credit on signup (phone verification required); occasional promotional credits ($15-$25 for hackathons/events); then PAYG from ~$0.0001/1K tokens. No long-term free flagship quota.

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).