APIMODELS is a pay-as-you-go AI API relay that sells about 150 models through one key at its own prices, mostly below the makers' list prices, and spends the margin on backup channels: 98.62% of requests succeeded over 30 days, moderation rejections excluded. APIMODELS is our own product: it is made by the team behind GenGrades.
ZenMux is an LLM gateway, operated under its terms by NexaMind Singapore Pte. Ltd., that sells Claude, GPT, Gemini and many Chinese models through OpenAI, Anthropic and Vertex-style endpoints at the makers' list token prices. It adds automatic credits for bad or slow answers, which it calls insurance, and 20 to 200 USD monthly coding plans.
WaveSpeedAI is an API platform, run by a Singapore company and a Hong Kong company named in its terms, that sells 1,000+ image, video, audio and 3D models plus an LLM service on one balance. It matches fal on Kling 3.0, charges above Google's list for Veo 3.1 Fast and accepts Alipay and WeChat Pay.
Vercel AI Gateway is Vercel's hosted API for about 480 text, image, video and speech models behind one key, billed from prepaid credits at the providers' list prices with no markup, including when you bring your own keys. It became generally available on August 21, 2025, and gives each Vercel team 5 USD of free credit a month.
Requesty is a London-based LLM gateway, run by Requesty Ltd and seed-funded by 20VC in 2025, that sells OpenAI- and Anthropic-compatible access to more than 600 models at list price plus a 5% top-up fee. It stands out for routing policies, spend controls and an EU endpoint in Frankfurt.
Replicate is an API for running AI models, owned by Cloudflare since a $57.4 million acquisition closed on December 1, 2025. It sells 100+ official models such as Veo 3.1, Nano Banana Pro and Kling 3.0 per output, and 50,000+ community models by the second of GPU time.
Poe API is Quora's developer API for the bots in its Poe chat app, opened on July 31, 2025, with OpenAI-compatible endpoints and an Anthropic-compatible one for official Claude bots. Calls spend the same points as a Poe subscription, so there is no separate API bill; current Claude bots cost about 1% more than Anthropic's list price.
OpenRouter is a New York company's API relay that sells access to more than 680 models from over 100 hosting providers through one key, at each provider's list price plus a 5.5% fee on credit purchases. Stripe agreed to buy it on August 19, 2026; no closing had been announced by October 21, 2026.
OpenCode Zen, called OpenCode Console in the docs since October 2026, is the pay-as-you-go model gateway from Anomaly Innovations, the team behind the OpenCode coding agent. It sells about 80 coding models near the makers' list prices plus a 4.6% + 0.31 USD card fee; a Console breach that month may have exposed some users' saved provider keys.
Novita AI is an inference host for open-weight models such as DeepSeek, GLM, Kimi and Qwen, with image, video, GPU and sandbox services; it does not resell GPT, Claude or Gemini. Its per-token prices match or undercut the makers' own, its terms promise zero data retention by default, and it does not name the company behind it.
NanoGPT is a pay-per-prompt AI service run by NanoGPT LLC, a U.S. company, with a web chat and an OpenAI- and Anthropic-compatible API for about 670 models at the makers' list prices. You can start with 0.10 USD in crypto and no account, or pay 12 USD a month for a plan built around open-weight models.
Kilo Gateway is the OpenAI-compatible model API behind the Kilo Code agent, run by Kilo Code, Inc., which Anaconda acquired in July 2026. It bills tokens at the upstream rate plus a 5% fee on credit purchases, and most of its 400 models match OpenRouter's IDs and prices.
Inworld Router is Inworld AI's model-routing API, which sends OpenAI- and Anthropic-style requests to third-party models at the providers' list prices with no markup and can route by user metadata. On October 14, 2026 Inworld folded it into Inworld Inference, which also serves open models on Inworld's own hardware; inworld.ai/router now redirects there.
fal is a San Francisco API platform, run by Features & Labels, Inc., that sells per-output access to more than 1,000 image, video, audio and 3D models on one prepaid balance. Its open models are cheap, but Google partner models such as Veo 3.1 Fast and Nano Banana Pro cost more on fal than on Google's own API.
Eden AI is a Lyon-based API gateway, run by Eden AI SAS, that puts about 500 language models and 250 'expert' models for OCR, speech, translation and image work behind one key and one prepaid balance. It passes provider prices through and, since January 2026, adds a 5.5% platform fee on self-serve credits.
CometAPI is a prepaid API service that sells text, image, video and audio models through one key at, by its own rule, 80% of the makers' list prices. Its terms and privacy pages name no company and use Hong Kong law, and it says it reaches the low prices through bulk credit buying and routing.
Cloudflare AI Gateway is Cloudflare's free proxy for AI requests, adding logging, caching, rate limits and fallbacks in front of 24 providers. Since August 2025 its Unified Billing lets you buy Cloudflare credits and call OpenAI, Anthropic, Google, xAI and Groq models without your own keys, at list prices plus a 5% fee on every credit purchase.
Chutes is a decentralized inference network on Bittensor subnet 64, run by Chutes Global Corp, where anonymous GPU operators serve open-weight models such as DeepSeek, Kimi and GLM through an OpenAI-compatible API. It ended its free tier on March 15, 2026, runs all 14 public models in trusted execution environments, and relies on TAO token subsidies.
Atlas Cloud is a New York API service, run by ATLAS CLOUD AI INC., that sells one key and one prepaid balance for 400+ models: Claude, GPT, Gemini and Grok, open models it hosts, and media models such as Seedance, Kling and Veo. It charges Anthropic's list prices for Claude and takes Alipay, WeChat Pay and crypto.
AI/ML API (AIMLAPI) is a prepaid API service, contracting through Boiler Labs FZ-LLC in the UAE and also listing AIMLAPI OÜ in Estonia, that sells text, image, video and audio models from many makers through one key. Its current prices for OpenAI, Anthropic and Google models sit about 30% above the makers' list prices.
TypeSafe AI is a San Francisco AI lab whose first model, Jev, returns typed decisions with probabilities instead of text, for software to act on. Jev opened in early access on September 15, 2026 with a $40 million seed round, and Bloomberg reported on October 9 a raise of about $870 million at a $7.5 billion valuation.
Kie.ai is a credit-based API service, run by two Denver LLCs, that sells access to other companies' video, image, music and language models at prices well below the makers' own, such as Veo 3.1 Quality at $1.275 per 1080p clip against Google's $3.20. It does not say how it obtains that access.
An API aggregator sells access to many AI models behind one key and one bill, such as OpenRouter for language models or fal and Replicate for image and video. We test what you give up for the convenience: price against the vendor's own API, latency and uptime, rate limits, whether outputs match the original model, and how billing works.
Models covered, price against the vendor's own API, latency and uptime, rate limits, fallback between providers, billing and invoices.
17 reviewedNot open yet
Models covered, price per image or per second of video against the vendor, queue times, outputs that match the original model, uptime, licensing.
10 reviewedNot open yet
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