AI API Router Directory

Groq runs LPU inference hardware tuned for raw tokens-per-second. The API offers a documented free developer tier — per-model rate limits such as 30 RPM / 1,000 RPD / 8K TPM on gpt-oss-120b — with full x-ratelimit-* header observability, and paid Developer plans that add Batch and Flex processing plus higher ceilings.

Community reported approximate monthly value of free tier rate limits for individual developers.

Helyx markets itself as a unified OpenAI-compatible API gateway for frontier models (Claude Opus 5, Claude Haiku 4.5, GPT-5.4 Nano, Gemini, Kimi, DeepSeek) claiming 50+ models behind one endpoint, with a published rate card of five active models including DeepSeek-V4 Pro at $0.400 in / $0.750 out per 1M tokens (50% off its $0.800/$1.50 list) and MiniMax M3 at $0.300/$1.200. Signup is Google or GitHub with no password, and the account is credited with $10.000000 free: $2.000000 instantly plus $8.000000 released on request. Paid top-ups are crypto-only (USDT, USDC, BTC, ETH, TRON) and every deposit is doubled ($5 pays $10 credit, $25 pays $50), with credits stated to never expire and no subscriptions or daily caps. The domain in this listing, helyx.ai, is dead - it returns a 404 DEPLOYMENT_NOT_FOUND from Vercel - and the live Helyx AI site is served from helyxai.space.

$10.000000 signup credit ($2.000000 instant, $8.000000 released on request) as stated on the helyxai.space homepage and pricing page; the $10 figure is the operator's own published grant, not a conversion.

DigitalOcean's AI stack is GPU Droplets plus a managed Inference product (model catalog, serverless and dedicated inference, agents and knowledge bases) rather than one hosted LLM endpoint. GPU Droplets bill per second from $0.76/GPU/hour (RTX 4000 Ada) up to $11.19/GPU/hour spot or $7.94 reserved for HGX B300, and serverless inference is prepaid only, charging published per-token rates such as Llama 4 Maverick at $0.20 input / $0.696 output per 1M tokens and gpt-oss-120b at $0.055 / $0.385. New accounts can receive a $5 credit valid for 90 days.

A $5 new-account credit applied to usage and expiring after 90 days is described in the 'How does the $5 free credit work?' FAQ on the GPU Droplets pricing page; no larger AI-specific credit is stated on the official pages fetched.

Dahl Inference is a high-performance platform offering decentralized access to open models like DeepSeek and MiniMax. It features an OpenAI-compatible API and a generous signup promotion of 100 million free tokens.

Value based on 100M free tokens at an estimated rate of $0.03/1M.

SiliconFlow (SiliconCloud) is a premier Chinese AI model platform offering high-performance inference for a wide range of open-source models (Qwen, Llama, DeepSeek). It is notable for providing free, permanent API access to models with parameters under 9B, alongside competitive pay-as-you-go rates for larger flagship

Signup grants ~CNY 14 (≈$2.08) credit, plus ~CNY 16 (≈$2.38) voucher after real-name verification; many <=9B open-source models (Qwen2.5-7B, Llama3.1-8B, etc.) are permanently free; direct access within mainland China. Since 2026-05-15, unverified users are capped at 10 RPM and delinquent/unverified accounts are cut off.

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

Nebius AI Studio is a European-based GPU cloud platform providing managed inference for top open-source LLMs like Llama 3.1 and DeepSeek R1. It leverages its own EU data centers to offer high-performance, privacy-compliant inference with transparent pay-as-you-go pricing tailored for both developers and enterprises.

AI Studio grants new accounts ~$1 one-time trial credit (startup/promo programs can grant far more); Nebius AI Cloud free-trial program suspended as of 2026-07-13; studio models otherwise pay-as-you-go.

Venice (venice.ai) — privacy-focused web app (anonymous or zero-retention) for chat, image, video and audio, known for self-hosted open-weight models plus TEE-hosted closed models. Unofficial browser/cookie integration (merged into existing 'venice' row).

Credits are USD-denominated; Pro $18/mo → $1 credit, Pro+ $68/mo → $75 credit (10% bonus), Max $200/mo → $225 credit (12.5% bonus).

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.

Coze is an all-in-one AI bot building platform that allows users to create and deploy agents with multiple models. It provides a production API for developers to integrate these bots into external applications with usage-based billing.

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

CrofAI is a commercial AI API provider offering unified access to popular open models like Llama 3.1 and Qwen 2.5. It focuses on simplicity and ease of integration for developers requiring reliable per-token billing.

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

DeepInfra is an OpenAI-compatible inference cloud for open-weight models, with per-token rates published on a single pricing page. Examples from that page: DeepSeek-V4-Flash-0731 at $0.06 per 1M input tokens ($0.015 cached) and $0.18 per 1M output; Qwen3.5-9B at $0.10/$0.15; DeepSeek-V3.2 at $0.26/$0.38; Kimi-K3 at $2.85 per 1M input and $14.25 per 1M output; embeddings from $0.005 per 1M input tokens. Models without fixed token rates are billed on execution time, and custom LLM deployments are billed per minute of GPU uptime across A100 ($0.89/GPU-hour) through B300 ($4.89/GPU-hour). There is no free credit: the pricing page states you must add a card or pre-pay before you can use the service.

No free tier stated on official pages (checked 2026-09-16): deepinfra.com/pricing states that you must add a card or pre-pay before using the service, with no starter credit offered.

Empower provides an AI API router with an OpenAI-compatible endpoint. It focuses on bridging multiple model providers (Llama, etc.) through a single gateway for standard clients and SDKs. Details were checked against the provider's own page at docs.empower.dev.

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

Featherless AI provides serverless access to LLMs and agent runtimes. It offers subscription-based 'Chat' plans with unlimited tokens and credit-based 'Developer' plans for API usage. Details were checked against the provider's own page at featherless.ai.

Free tier available — no credit card required

Free.ai is an AI tool aggregator offering 477+ tools across chat, image, and video. It provides 30,000 free tokens daily for registered users and supports premium models like GPT-6 and Claude via paid plans. The platform features an in-browser IDE for deploying AI applications.

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

FriendliAI is a high-performance AI inference platform specializing in serving frontier open-weight models like GLM, DeepSeek, and Llama with industry-leading speed. It offers serverless Model APIs, dedicated GPU endpoints, and on-premise containers.

Free tier for serverless inference — no credit card required

LiteRouter is an AI API aggregator that provides access to hundreds of models from various providers via a single OpenAI-compatible interface. It supports free models with specific daily limits and pay-as-you-go billing for premium variants.

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

Muse Code is Meta's specialized AI coding environment and agent service, built on the Meta Model API. It provides a terminal-based interface for code generation and transformation, featuring both a monthly subscription plan for high usage and credit-based PAYG options via Muse Spark.

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

Snowflake Cortex AI runs LLMs, agents and search inside the Snowflake governance perimeter, exposed through SQL AI functions, Cortex Agents, Cortex Analyst and Cortex Search. It bills on a second credit type: AI Credits, priced at $2.00 per credit on demand globally and $2.20 regionally (Snowflake Service Consumption Table, effective 2026-09-09), on top of Platform Credits for warehouses. Published AI Credit rates per 1M tokens include llama3.1-8b at 0.11 in / 0.11 out, llama3.3-70b at 0.36 / 0.36, mistral-large2 at 1.00 / 3.00, and claude-sonnet-5 at 1.30 / 6.50 when invoked via Snowflake CoWork or Cortex Agents; Cortex Search is 6.3 AI Credits per GB per month of indexed data and Cortex Analyst is 67 Platform Credits per 1,000 messages.

Snowflake markets a free 'start for free' signup but no dollar credit amount or free Cortex allowance is stated on the official pricing page or consumption table (checked 2026-09-16).