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.

NLP Cloud is an API platform offering pre-trained and custom models for summarization, classification, embeddings, ASR, speech synthesis and large language models such as GPT-OSS 120B, LLaMA 3.1 405B and ChatDolphin. Its pay-as-you-go plan has no fixed monthly cost and automatically grants a $15 free credit, then bills per request at $0.003 on CPU or $0.005 on GPU with token surcharges for the largest models. Published prepaid plans run from Starter at $29 per month (10 parallel requests) to the Large Language Models plan at $2,499 per month (50 parallel requests), with dedicated fine-tuning plans from $399 per month.

Official pricing page states that the pay-as-you-go plan automatically gives a $15 FREE credit with no fixed monthly cost (nlpcloud.com/pricing.html, checked 2026-09-16).

AnyAPI is a commercial multi-model API aggregation gateway providing access to 400+ models via a single key. It offers a generous free tier for developers and scales to high-volume enterprise plans, supporting models from OpenAI, Anthropic, and open-weights families.

Free tier $0/mo: 100K tokens/day (~100 credits/day, 1 credit≈1K tokens), ~20 RPM / 200 RPD, free and basic models only, no card. ≈$3/mo blended at $1 per 1M tokens.

OpenRouter is a unified, OpenAI-compatible API aggregating hundreds of model providers behind one key. Free model variants (:free IDs) are genuinely free with documented platform caps — 20 requests/min and 50/day for accounts that have purchased under 10 credits, 1,000/day once you've purchased 10+ — while paid variants have no platform request cap. Fallback routing, per-key credit caps, and BYOK are built in.

:free models cost $0, no card; 20 req/min; 50 :free req/day with <10 credits, 1000/day after buying $10+ credits (verified FAQ; failed reqs count). ~$1.5/mo equivalent at 50 req/day, ~1K tokens/call.

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).

Scaleway Generative APIs is a serverless, OpenAI-compatible inference service hosted only in Paris and billed per 1M tokens in euros. Published rates run from EUR 0.15/1M input and EUR 0.60/1M output for gpt-oss-120b, and EUR 0.15/EUR 0.35 for mistral-small-3.2-24b-instruct, up to EUR 1.80/EUR 5.50 for glm-5.2; whisper-large-v3 is metered per audio minute at EUR 0.003 with free output tokens, and embedding models are input-only at EUR 0.10/1M. Every new customer gets a free tier of 1,000,000 tokens, with billing starting at token 1,000,001.

1,000,000 free tokens per new customer, stated on the Generative APIs page; valued at the cheapest published input rate of EUR 0.15/1M (mistral-small-3.2-24b-instruct or gpt-oss-120b), which is roughly USD 0.16 - the grant is token-denominated, so actual dollar value varies by model.

SambaNova Cloud serves open-weight models (DeepSeek-V3.1, DeepSeek-V3.2, Meta-Llama-3.3-70B-Instruct, gpt-oss-120b, gemma-4-31B-it, MiniMax-M2.7 and MiniMax-M3) through an OpenAI-compatible endpoint at api.sambanova.ai/v1, priced per 1M tokens from $0.22 input / $0.59 output for gpt-oss-120b up to $3 / $4.50 for DeepSeek-V3.1 and V3.2. The free tier is defined by the absence of a payment method: 20 requests per minute, 20 requests per day and 200,000 tokens per day per model, on the five models listed in the free-tier tables. Linking a card moves the account to the Developer tier, which raises per-model limits and caps the account at 20M tokens per day across all models.

Free tier is a recurring daily allowance, not a USD credit: 200,000 tokens/day (20 RPM, 20 RPD) per the official rate-limits docs; 200k tokens at the cheapest published input rate of $0.22/1M (gpt-oss-120b) is about $0.04/day, while the same 200k at DeepSeek-V3.1's $3/1M input rate would be about $0.60/day.

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.

NVIDIA NIM's hosted API (build.nvidia.com / integrate.api.nvidia.com) serves a broad catalog of open-weight models — Nemotron, Llama, Qwen, DeepSeek, GLM and more — in an OpenAI-compatible shape, with a permanent free tier: API key at sign-up, no card, 40 requests/minute by default (200 RPM granted on request, per NVIDIA's developer forums).

Free tier is rate-limited (40 RPM default, 200 on request) rather than credit-based — no USD value to quantify.

NavyAI (api.navy) is a unified AI API gateway providing access to 150+ models through flat-rate subscription plans with daily token quotas. It offers an OpenAI-compatible interface, 'Login with Navy' OAuth for BYOP workflows, and plans ranging from a basic free tier to high-volume 'Apex' tiers.

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

Nebius sells two products relevant to an API-pricing decision: Token Factory, an OpenAI-compatible inference API for open models (where each model is offered in a default and a -fast flavor with different latency and token pricing), and GPU instances billed per GPU-hour, from $2.15 for preemptible H100 up to $7.85 on-demand for HGX B300. The public pricing page documents instance, storage and network rates plus billing rules; Token Factory per-token prices are only shown after login. Commitment reservations are advertised at up to 35% below on-demand rates.

No free tier or USD sign-up credit is stated on official pages (checked 2026-09-16); the docs describe promo codes that grant free credits only when Nebius issues one in a special offer, and the first card payment is $25 credited to the account balance.

PublicAI is a decentralized AI data network and API gateway. It facilitates access to LLMs by leveraging a community-governed data infrastructure, offering an API platform for developers to integrate models with a focus on data transparency.

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

Regolo AI provides scalable serverless AI infrastructure with a focus on privacy and zero data retention. It serves popular open-source models (Llama, Mistral, Qwen) via an OpenAI-compatible API, offering monthly token capacity plans and a flexible free trial.

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

Speka is a unified AI API gateway providing access to frontier models (DeepSeek, Nemotron, Llama) via a single API key. It uses a subscription model with monthly usage allowances and standard per-token overage rates.

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