Apishop is a professional AI API gateway designed for developers in mainland China. It provides direct, low-latency access to Anthropic, OpenAI, and Gemini models with zero code changes required. Billing is transparently mapped 1:1 to official USD rates but paid in local currency.

freeairouter review: register-then-pay-as-you-go commercial gateway, no public free quota seen; official site is a mainland-friendly gateway drop-in compatible with OpenAI/Anthropic/Gemini.

Arcee AI provides a domain-specific model platform (Arcee Conductor) and inference API for open-weight models. It uses a native API format but Conductor provides a unified interface. Access is pay-as-you-go with no added premium on 3rd party model inference costs.

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

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.

Auggie is Augment Code's free, terminal-based agentic coding CLI (npm i -g @augmentcode/auggie) that runs context-aware agents locally with interactive and headless modes. It is multi-model (Claude, GPT, or bring-your-own-key); the broader Augment 'Cosmos' platform is the company's enterprise offering.

Free CLI tier; enterprise/Cosmos pricing not publicly quantified on the fetched pages.

Auriko is an AI API router and aggregator that provides a unified interface to multiple LLM providers. It offers both platform-managed and Bring Your Own Key (BYOK) modes. It publishes high rate limits for both modes.

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

Azure AI Foundry (formerly Azure AI Studio) provides access to a vast catalog of models including OpenAI, Anthropic, and Llama. It features a unified API surface and enterprise-grade management. Pricing is unified under Azure's pay-as-you-go model.

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

Azure OpenAI Service provides REST API access to OpenAI's powerful language models including the GPT-4 and GPT-5 series with Azure's enterprise capabilities. It uses a strictly pay-as-you-go or provisioned throughput model.

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

new.bxacc.xyz is an anonymous Chinese New-API based relay aggregating GPT-5.x, Claude Opus 4.x, and DeepSeek V4. Probed model_price=0 entries are token-billed via model_ratios, making it a pure top-up relay with high risk.

Unknown (/api/pricing has 6 model_price=0 entries, but quota_type=0 token billing with non-zero model_ratio/completion_ratio means they are actually paid; no verifiable sign-up bonus).

Baichuan is a leading Chinese AI company offering large-scale language models. Its platform provides model inference via native and OpenAI-compatible APIs, focusing on high-quality Chinese language performance.

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

Baidu's Qianfan platform provides access to the ERNIE Bot model family. It is a full-stack AI development platform offering model training, fine-tuning, and inference. New users typically receive a small trial credit.

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

Baidu Qianfan is the official Model-as-a-Service (MaaS) platform of Baidu Intelligent Cloud. It serves the ERNIE (Wenxin Yiyan) series models and other third-party models via an OpenAI-compatible v2 API, offering high-performance inference for enterprise and individual developers.

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

Black Forest Labs (api.bfl.ai) provides official API access to the FLUX diffusion model family. It is a credit-based image generation API where users purchase balance to generate high-fidelity images using FLUX.2 and FLUX.3 models.

FLUX API is pay-per-use: credits added via Stripe at dashboard.bfl.ai; ToS: fees charged per-use via credit purchase. No free API credits advertised; Reddit reports old 200-credit playground giveaway ended.

BFL ML (api.bfl.ml) is the technical endpoint for Black Forest Labs' FLUX model API. It shares the same credit-based billing as the main bfl.ai domain, providing high-performance access to diffusion models for production workloads.

Black Forest Labs FLUX API is prepaid-credit only: 1 credit = $0.01, docs instruct 'create account, add credits' and to buy more on HTTP 402. No free signup credits found in official docs.

Blackbox AI (blackbox.ai) — coding assistant plus enterprise multi-model router with 300+ models behind one endpoint (API/CLI/Agents). Unofficial browser/cookie integration of the web app; enterprise pricing is per-token with committed annual spend.

Priced per 1M tokens with committed annual spend (PO burn-down); no platform fees or markups.

web-cookie access — wraps the provider web app (unofficial). Paste your __Secure-authjs.session-token value or full cookie header from app.blackbox.ai This entry is an access surface/agent — it routes to third-party models rather than hosting its own.

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

BytePlus ModelArk is ByteDance's international enterprise AI platform providing access to the Doubao model family. It features a tiered pricing structure and integrates with BytePlus's global cloud ecosystem.

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

Open-source Go proxy server (MIT license, router-for-me/CLIProxyAPI) that wraps CLI subscriptions - Google Antigravity/Gemini, OpenAI ChatGPT Codex (GPT series), Anthropic Claude Code, xAI Grok Build, Moonshot Kimi - and exposes them as OpenAI (incl. Responses), Gemini (incl. Interactions), Claude, Codex and Grok compatible API endpoints. OAuth login flows, multi-account round-robin load balancing, streaming/non-streaming/WebSocket, function calling, multimodal input, Management API, and an embeddable Go SDK. Self-hosted; users bring their own upstream accounts/keys. Desktop wrapper: EasyCLIProxyAPI.

Software is free (MIT); access to upstream models depends on user-provided subscriptions/API keys, no credits or prices from the proxy itself.

Cartesia is a real-time text-to-speech and voice infrastructure company (Sonic TTS, Ink STT, voice agents). Credit-based plans: Free (~27 min TTS + ~1h51m STT/mo), Pro $5/mo, Startup $49/mo, Scale $299/mo, Enterprise custom. Call duration $0.06/min on voice agents.

Free tier includes ~27 min/mo Sonic-3.6 TTS and ~1h51m/mo Ink-2 STT plus 2 concurrent requests; per-credit USD value not published on the pricing page, so no reliable USD quantification.

CatGPT is an AI chatbot/router service. Limited public information is available regarding its API documentation or enterprise-grade features. Details were checked against the provider's own page at catgpt.cc.

Domain serves only a default 'TestPage' placeholder; no active AI API service or free-tier information found on site or in searches.

Provider slug 'api-celebras-ai' appears to be a typographical error of 'api-cerebras-ai'. No distinct AI service or official documentation was found for this specific domain (celebras.ai). Research suggests 'Celebros' exists as an e-commerce search tool, but it is unrelated to LLM inference.

celebras.ai does not resolve (DNS fail) - apparent typo of Cerebras, api.cerebras.ai. Cerebras pricing page lists a Free tier; docs have a Free Trial tier (not auto-renewing); trackers report ~1M tokens/day, 5 RPM free.

Hyper (by Charm) is an AI inference solution purpose-built for coding. It manages its own infrastructure to optimize open-source coding models. It provides 100 free Hypercredits monthly on signup. Details were checked against the provider's own page at hyper.charm.land.

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

Chat Oripe is an AI API aggregator offering access to multiple LLM families via a unified interface. It targets low-cost inference with standardized pricing across different upstream models. Details were checked against the provider's own page at api.oriper.com.

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

web-cookie access — wraps the provider web app (unofficial). Paste the full ChatGPT Cookie header. OmniRoute verifies it in an isolated headless browser profile. 93 models tracked (via OpenRouter catalog).

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

ChatGPT (chatgpt.com) web app — Plus/Pro consumer plans. Unofficial browser/cookie integration forwarding to OpenAI's hosted GPT, GPT-Image and o-series models.

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