AI API Tools Pricing

Observed pricing models across AI API tools.

Last updated: August 24, 2026
5 min read · Expert verified

Pricing models as observed by the sync pipeline across the top AI API tools. 10 of the top 10 offer a free tier.

Pricing Plans

Free

Atla

Free

Atla provides frontier AI evaluation models to evaluate generative AI, find and fix AI mistakes at scale, and build more reliable GenAI applications. It offers an LLM-as-a-Judge to test and evaluate prompts and model versions. Atla's Selene models provide precise judgments on AI app performance, running evals with accurate LLM Judges. They offer solutions optimized for speed and industry-leading accuracy, customizable to specific use cases with accurate scores and actionable critiques.

  • LLM-as-a-Judge for evaluating AI models
  • Selene models for precise AI evaluation
  • Eval Copilot for customizing evaluation criteria
  • API access for integration into existing workflows
  • Actionable critiques and accurate scores
Free

AiHubMix

Freemium

AiHubMix is an LLM API router and OpenAI API proxy that aggregates various models such as OpenAI, Google Gemini, DeepSeek, Llama, 阿里Qwen, Claude, 月之暗面, and cohere. It provides a unified OpenAI API standard for calling different models, supports the latest models, and offers unlimited concurrency. It aims to simplify AI model integration and make development more intelligent and efficient.

  • LLM API router
  • OpenAI API proxy
  • Model aggregation (OpenAI, Gemini, DeepSeek, Llama, Qwen, Claude, etc.)
  • Unified OpenAI API standard
  • Unlimited concurrency
Free

Apiframe

Freemium

Apiframe is a platform that offers a suite of AI APIs to enhance your apps and workflows with code or no-code. It provides APIs for AI image generation, AI photos, AI video generation, AI music generation, and face swapping. Apiframe also offers the Midjourney API, allowing developers to integrate Midjourney's AI image generation capabilities into their applications. It supports integrations with platforms like Zapier and Make.com.

  • Midjourney API integration
  • AI image generation
  • AI video generation
  • AI music generation
  • Face swapping
  • No-code integrations
  • Private CDN hosting
  • AI Image Generation API
Free

supermemory™

Freemium

Supermemory is a universal memory API for the AI era, designed to help developers stop building retrieval from scratch and personalize LLMs for their users. It provides an unlimited context API that offers automatic long-term context across conversations. Built for developers who ship, it handles enterprise-grade performance at any scale, seamlessly integrates across teams and tools, and allows users to own their data while maintaining compliance with secure and controllable deployment options (cloud, on-prem, on-device). It is model-agnostic, works with any LLM provider, and delivers sub-400ms latency with best-in-class precision and recall.

  • Universal memory API for the AI era
  • Unlimited context API for LLMs
  • Enterprise-Grade Performance at Any Scale (billions of data points, low-latency retrieval)
  • Seamless Integration Across Teams & Tools (Notion, Google Drive, CRMs)
  • Secure by Design, Fully Controllable deployment (cloud, on-prem, on-device)
  • Model-agnostic APIs (works with any LLM provider)
  • Sub-400ms latency at scale
  • Best in class performance (stronger precision and recall)
Free

api4ai

Freemium

api4ai provides AI-powered, cloud-native image processing APIs. It offers subscription-based cloud APIs for various image processing tasks, including Background Removal, OCR, NSFW Content Moderation, Image Labelling, Face Recognition, Brand Mark Detection, and Image Anonymization. Custom solutions are also available to meet specific business needs. The platform empowers businesses, startups, and developers with ready-to-use APIs accessible via HTTP RESTful Cloud.

  • Background Removal
  • OCR (Optical Character Recognition)
  • NSFW Content Moderation
  • Image Labelling and Tagging
  • Face Recognition
  • Brand Mark Detection
  • Image Anonymization
  • Object Detection
Free

Pinecone

Freemium

Pinecone is a vector database designed to make vector search fast and easy, transitioning it from research to production without the need for DevOps. It allows users to manage and search through vector embeddings to power semantic search, recommenders, and other applications that rely on relevant information retrieval. Pinecone offers a scalable solution for building knowledgeable AI, enabling users to search through billions of items for similar matches in milliseconds.

  • Vector search
  • Semantic search
  • Hybrid search (sparse and dense embeddings)
  • Real-time indexing
  • Metadata filtering
  • Serverless scaling
  • Managed infrastructure
Free

HueMan

Freemium

HueMan is a User Avatars API for Developers that allows you to effortlessly assign avatars to your app's users using an API or select a personal digital identity from over 10 trillion combinations. It offers seamless integration of personalized avatars into applications, efficient data delivery with Base64 encoded avatars, optimized avatar management with Lite Avatars, dynamic scaling to accommodate any user base size, custom API keys for managing multiple projects, and flexible subscription plans starting with a free option.

  • User Avatar Generation
  • API Integration
  • Base64 Encoded Avatars
  • Lite Avatars for optimized performance
  • Dynamic Scaling
  • Custom API Keys
  • Flexible Subscription Plans
Enterprise

IMG Processing

Trial Free Account for testing purposes. All features available. Test watermark added to images. Stored images will be deleted after 15 days. Obfuscated image analysis. Low rate limits.Hobby $7/month Full account for hobby enthusiasts. All features available. Images stored indefinitely. 200 images per month. No watermark on images. Full image analysis. Increased rate limits.Pro $25/month Account for great projects. Same features as Hobby. 2,500 images per month. Increased rate limits. CDN for public images. Standard support.Enterprise $99/month Account for high volume usage. Same features as Pro. 20,000 images per month. Custom domain for public images. 99.99% guarantee uptime (SLA). Custom price plans. Priority Support. | Trial Free Account for testing purposes. All features available. Test watermark added to images. Stored images will be deleted after 15 days. Obfuscated image analysis. Low rate limits.Hobby $7/month Full account for hobby enthusiasts. All features available. Images stored indefinitely. 200 images per month. No watermark on images. Full image analysis. Increased rate limits.Pro $25/month Account for great projects. Same features as Hobby. 2,500 images per month. Increased rate limits. CDN for public images. Standard support.Enterprise $99/month Account for high volume usage. Same features as Pro. 20,000 images per month. Custom domain for public images. 99.99% guarantee uptime (SLA). Custom price plans. Priority Support. | Trial Free Account for testing purposes. All features available. Test watermark added to images. Stored images will be deleted after 15 days. Obfuscated image analysis. Low rate limits.

IMG Processing is a powerful and flexible API and node SDK that provides a wide range of image manipulation and analysis capabilities, allowing developers to integrate advanced image processing features into their applications with ease. It offers functionalities like resizing, cropping, flipping, rotating, converting, and watermarking images.

  • Image resizing
  • Image cropping
  • Image flipping
  • Image rotating
  • Image conversion
  • Watermarking
  • Background removal
  • Image analysis
Free

LLM Gateway

Free

LLM Gateway is a platform that allows users to route, manage, and analyze their Large Language Model (LLM) requests across multiple providers using a unified API interface. It is fully open source and compatible with the OpenAI API format for seamless integration.

  • Unified API Interface (OpenAI API compatible)
  • Multi-provider Support
  • Usage Analytics (requests, tokens, response times, costs)
  • Performance Monitoring
  • Secure Key Management
  • Self-hosted or Cloud deployment
  • Model Orchestration (dynamic routing to optimal AI model)
  • Simple Integration
Free

Callr

Freemium

Callr is an API-based voice and SMS platform that seamlessly integrates into your product, enabling powerful communication, data capture, AI analysis, and CRM integration. It allows turning conversations into actionable data.

  • API JSON
  • Webhooks
  • Call Analytics
  • Call forwarding
  • Click-to-call
  • Call recording
  • Transcription
  • Speech analytics

AI API pricing at a glance

  1. LLM Gateway (5.0/5 on Toolify from 99 reviews) — pricing: Free.
  1. supermemory™ (5.0/5 on Toolify from 98 reviews) — pricing: Freemium.
  1. AiHubMix (5.0/5 on Toolify from 89 reviews) — pricing: Freemium.
  1. Apiframe (5.0/5 on Toolify from 87 reviews) — pricing: Freemium.
  1. api4ai (5.0/5 on Toolify from 85 reviews) — pricing: Freemium.
  1. Pinecone (5.0/5 on Toolify from 81 reviews) — pricing: Freemium.
  1. Atla (5.0/5 on Toolify from 79 reviews) — pricing: Free.
  1. HueMan (5.0/5 on Toolify from 78 reviews) — pricing: Freemium.
  1. IMG Processing (5.0/5 on Toolify from 64 reviews) — pricing: Trial Free Account for testing purposes. All features available. Test watermark added to images. Stored images will be deleted after 15 days. Obfuscated image analysis. Low rate limits.Hobby $7/month Full account for hobby enthusiasts. All features available. Images stored indefinitely. 200 images per month. No watermark on images. Full image analysis. Increased rate limits.Pro $25/month Account for great projects. Same features as Hobby. 2,500 images per month. Increased rate limits. CDN for public images. Standard support.Enterprise $99/month Account for high volume usage. Same features as Pro. 20,000 images per month. Custom domain for public images. 99.99% guarantee uptime (SLA). Custom price plans. Priority Support. | Trial Free Account for testing purposes. All features available. Test watermark added to images. Stored images will be deleted after 15 days. Obfuscated image analysis. Low rate limits.Hobby $7/month Full account for hobby enthusiasts. All features available. Images stored indefinitely. 200 images per month. No watermark on images. Full image analysis. Increased rate limits.Pro $25/month Account for great projects. Same features as Hobby. 2,500 images per month. Increased rate limits. CDN for public images. Standard support.Enterprise $99/month Account for high volume usage. Same features as Pro. 20,000 images per month. Custom domain for public images. 99.99% guarantee uptime (SLA). Custom price plans. Priority Support. | Trial Free Account for testing purposes. All features available. Test watermark added to images. Stored images will be deleted after 15 days. Obfuscated image analysis. Low rate limits..
  1. Callr (5.0/5 on Toolify from 62 reviews) — pricing: Freemium.

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