AI API Router Directory

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.

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).

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).

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).

Baseten offers Model APIs, hosted open-weight models behind an OpenAI Chat Completions endpoint at inference.baseten.co with a beta Anthropic Messages endpoint, alongside dedicated GPU deployments and training billed per minute. Model API rates range from $0.10/1M input and $0.50/1M output for GPT OSS 120B to $3.00/1M input and $15.00/1M output for Kimi K3, with cached input billed at roughly a tenth of the input rate. The Basic plan is $0 per month pay-as-you-go, and the pricing FAQ states new accounts come with credits but publishes no amount.

The official pricing FAQ states that new Baseten accounts come with credits to experiment with deployments, but no dollar amount, expiry or conditions are published (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).

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 now presents itself as enterprise inference rather than a consumer coding tool: its pricing page shows a single Enterprise plan with custom, annual, purchase-order committed spend and no free or individual tiers. Pricing is per token against published list rates across a 300+ model catalog served from one OpenAI-compatible endpoint, for example deepseek-v4.1-flash at $0.15 input / $0.60 output per 1M tokens and kimi-k3 at $3.00 / $15.00 per 1M, with commitments drawn down as usage is consumed and spend alerts at 75% and 90%. The same pages state end-to-end encryption on every connection, contractual zero data retention, PII removal before prompts reach closed models, dedicated single-tenant deployment and implementation included at $0 with a forward-deployed engineer.

No free tier stated on official pages (blackbox.ai, blackbox.ai/pricing and docs.blackbox.ai all present enterprise per-token commits only, checked 2026-09-16).

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.

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'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.

CheapYun is a legacy AI API relay service. It is currently reported with degraded performance and minimal public documentation. Details were checked against the provider's own page at cheapyun.cc.cd. Some figures in this entry rest on third-party reports rather than a first-party page.

Service down: HTTP 521 (Cloudflare, origin server down) on both HTTP and HTTPS; no active service, hence no free tier. Searches found nothing on this host.

CheapYun Host1 is a legacy/unclassified endpoint for AI API relaying. It is currently reported as down/degraded and lacks modern documentation. Details were checked against the provider's own page at cheap-host1.cheapyun.com.

Subdomain serves a '帮助网管理系统' (helpdesk/management system), not an AI API relay; no API pricing or free-tier info found. Likely mis-listed.

Cheaper Inference is a low-cost AI model aggregator offering frontier models like GPT-5.4 at significant discounts. It uses an OpenAI-compatible API interface. Details were checked against the provider's own page at cheaperinference.com.

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

Chenzk API is a personal/community AI API relay service providing access to mainstream LLMs at normalized market rates. It uses an OpenAI-compatible base URL. Details were checked against the provider's own page at chenzk.top.

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