AI API Router Directory

Fish Audio (fish.audio) is a voice AI platform offering text-to-speech, speech-to-text, voice cloning and real-time streaming through a web app, REST API and SDKs, billed per million UTF-8 bytes rather than per character. Its developer pricing page lists s2.1-pro, s2-pro and s1 at $15.00 per million UTF-8 bytes (about 180,000 English words or 12 hours of speech), ASR transcribe-1 at $0.36 per audio hour and voice-design-1 at $0.01 per successful request, and states there are no subscription fees or monthly minimums for API access. A free counterpart model, s2.1-pro-free, is priced at $0.00 per million UTF-8 bytes with the same quality and 83-language coverage as the paid model but without time-to-first-audio or deployment-slot guarantees.

s2.1-pro-free is priced at $0.00 per 1M UTF-8 bytes in the official pricing table on docs.fish.audio — a free model rather than a cash credit, subject to fair-use limits and without TTFA or DPA guarantees (checked 2026-09-16).

GitHub Copilot is GitHub's AI coding assistant, sold to individuals as Free ($0), Pro ($10/user/month), Pro+ ($39/user/month) and Max ($100/user/month), and to organizations as Business ($19/user/month) and Enterprise ($39/user/month). The Free tier needs no credit card and lists 2,000 completions per month, access to Claude Haiku 4.5 and GPT-5 mini "and more", the Copilot CLI and community support; GitHub's own FAQ on the same page states Free users are limited to 2,000 completions and 50 chat requests per month, including Copilot Edits. Paid individual plans add unlimited code completion and next edit suggestions, cloud agent, code review, delegation to third-party agents (Claude Code and Codex), model selection and monthly GitHub AI Credits of $15 (Pro), $70 (Pro+) and $200 (Max).

GitHub Copilot Free is $0/user/month with 2,000 completions and 50 chat requests per month and no credit card required, stated on github.com/features/copilot/plans and its Free-plan FAQ (checked 2026-09-16).

GitLab Duo is GitLab's set of AI features across the software lifecycle, including AI chat and code suggestions in the IDE, agentic chat, foundational agents and flows, a custom agent catalog, model selection and MCP integrations. GitLab's pricing page lists GitLab.com Free at $0/user/month with up to 5 users in a private top-level group, 400 compute minutes per month, 10 GiB storage and static application security testing, but states plainly that on Free "AI features can be accessed via the purchase of GitLab Credits add-on". Included AI credits appear only on paid tiers, shown as a limited-time promotional offer: $12 GitLab Credits per user/month on Premium ($29/user/month billed annually) and $24 per user/month on Ultimate, with GitLab Credits priced at $1 per credit.

GitLab.com Free is $0/user/month but includes no AI credits: the pricing page states AI features on Free are accessed only by purchasing the GitLab Credits add-on at $1 per credit, so the free AI grant is zero (checked 2026-09-16).

Zed is an open-source, Rust-based code editor with built-in agentic editing, edit predictions and real-time multiplayer collaboration. The Personal plan is free forever and includes 2,000 accepted edit predictions plus unlimited use with your own API keys or external agents such as Claude Agent and Codex CLI; the docs add that the editor needs no subscription or authentication. Pro adds unlimited edit predictions and $5 of included tokens per month, with usage beyond that billed at provider list price plus 10% - the docs put the Pro subscription at $10/month via the default $10 monthly spend limit note - and Business is $30/seat/month with no bundled AI credits. A Student plan gives verified university students Pro features and $10/month in token credits free for one year.

Zed Personal is free forever with 2,000 accepted edit predictions and no hosted-model access, while Zed Pro adds $5 of monthly token credit (zed.dev/pricing and zed.dev docs on plans and pricing, checked 2026-09-16).

360 AI (360智脑) is a Chinese LLM API provider by 360 Group, offering conversational models with support for multiple file formats and LlamaIndex compatibility. Access is managed through a dashboard-generated API key, primarily serving enterprise and developer needs in China.

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

9Router is a specialized AI API router designed for smart fallback and cost optimization, allowing users to pool their own subscription keys. It emphasizes 'unlimited free AI coding' by routing through free models or maximizing existing subscriptions via a local proxy or VPS.

9Router is free open-source self-hosted router software (never charges); 9router.xunleiyk.com is a hosted instance ('AI Infrastructure Management' panel, auth-gated). No credits/billing tiers apply.

Open-source local AI router (npm package '9router', MIT license, Next.js, by decolua). Connects CLI coding tools (Claude Code, Codex, Cursor, Gemini CLI, Cline, OpenCode, Antigravity, Copilot and any OpenAI/Claude-compatible client) to 40+ AI providers and 100+ models through a local OpenAI/Claude-compatible endpoint. Features: RTK token compression (20-40% savings on tool results), auto-fallback (subscription -> cheap -> free), multi-account round-robin, web dashboard. Self-hosted; users bring their own upstream accounts/keys. Implementation inspired by CLIProxyAPI.

Software is free (MIT); it routes through user-provided upstream accounts, no credits or prices from the router itself.

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-ROUTER is an enterprise-focused AI API gateway providing unified access to OpenAI, Claude, and Gemini models. It uses a unique 'fuel package' and subscription model, offering managed quotas with daily, weekly, and monthly limits for intensive development and team workflows.

Paid ChatGPT relay with time-boxed packages only: daily $5.40-$35.10/day, weekly $26.10-$179.10 (Alipay/WeChat/crypto/Stripe). No free tier or signup credit found on site or in searches.

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.

AINative Studio specializes in AI agent infrastructure, providing multimodal APIs, persistent agent memory, and MCP server hosting. It offers tiered subscription plans that include 'ZeroTime' credits for agentic workflows and specialized model 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).

Aiaiai001 (Longcheng AI Toolbox) is a Chinese commercial AI API relay aggregating frontier models via a New-API based backend. It provides an OpenAI-compatible endpoint and requires quota purchases through an external shop (pay.ldxp.cn).

Official FAQ directs users to buy quota packages via pay.ldxp.cn/shop/aiaiai001; freeairouter review says '付费中转，非免费' (paid relay, not free) with free quota unclear/none observed. Paid relay, no public free tier.

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).

All API Hub is an open-source browser extension and account manager for the New-API/Sub2API ecosystem. It provides a unified dashboard for tracking balances, usage, and auto-checking across multiple relay providers, rather than serving as an API endpoint itself.

Free open-source tool that grants no model quota itself; its docs only teach users how to farm check-in/free allowances on other relays. No free API value is provided here.

Amazon Q Developer is AWS's software-development assistant, available in IDE plugins, the CLI and the AWS Console, with two published tiers. The Free Tier is perpetual with monthly limits: 50 agentic requests per month covering Q&A chat and agentic coding, access to the latest Claude models, and 1,000 lines of code per month for Java upgrades. The Pro Tier is $19 per user per month and raises the limits, adds 4,000 lines of code per user per month pooled at the AWS payer-account level for Java transformation, adds IAM Identity Center administration and IP indemnity, and bills excess transformation usage at $0.003 per line of code submitted.

No USD credit is granted: the official pricing page publishes a perpetual Free Tier as allowances (50 agentic requests per month and 1,000 lines of code per month for Java upgrades) alongside the $19 per user per month Pro tier and $0.003 per line overage (aws.amazon.com/q/developer/pricing, checked 2026-09-16).

Ant Ling (by inclusionAI) provides an OpenAI-compatible API for its proprietary Ling model family. It supports high-speed inference and is designed to integrate seamlessly with standard SDKs by switching the base URL, serving both developer and enterprise needs.

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

Anthropic's Claude API is per-token with no free tier: Fable 5.1 $10/$50, Opus 5 $5/$25, Sonnet 5 $2/$10 and Haiku 4.5 $1/$5 per 1M in/out, with the full 1M-token context at standard pricing on 4.6+, a 50% batch discount, prompt-caching reads at 0.1× input (0.025× on Fable 5.1), 1.1× US-only inference, and itemized server-tool pricing. Consumer plans (Free/Pro/Max) are a separate product.

No free tier on the API (verified 2026-09-16) — first requests bill at per-token rates. The claude.ai Free plan is a separate consumer product with usage limits, not API access.

OAuth access — sign-in with your existing account. Google Antigravity 43 models tracked (via OpenRouter catalog).

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

Antigravity CLI (agy) — the terminal TUI for Google Antigravity 2.0, replacing Gemini CLI. Shares the same agent backend as the Antigravity IDE (incl. Claude models). Authenticates via Google OAuth. Free 'Individual' tier with weekly rate limits; higher limits via Google AI Pro/Ultra plans. No bring-your-own-key support.

Overage billed via purchased Google AI credits at Gemini Enterprise Agent Platform consumption pricing (not per-token fixed).

Api.airforce is a unified AI model aggregator reselling access to 100+ models from Anthropic, OpenAI, and xAI. It offers a large selection of free models (including Grok-3 and Claude 3.7) alongside paid subscription tiers for higher throughput.

55 free tier models including Grok-3, Claude 3.7, Qwen3, Kimi-K2, Gemini 2.5 Flash, DeepSeek-V3

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.