AI API Router Directory

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).

Hyperbolic (hyperbolic.xyz) is the API-specific endpoint for Hyperbolic's AI cloud. It provides serverless inference for over 25 open-source models through an OpenAI-compatible /v1 endpoint. The platform supports text, image, and audio generation with pay-as-you-go pricing.

~$1 trial credit for new users (DeepSeek V3, Llama 3.1 405B, Qwen); pay-as-you-go after it is used (Llama 405B ~$4/M, DeepSeek R1 ~$3/M tokens).

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.