7 tools15 comparisons

Best AI APIs Tools(2026)

Add AI capabilities to your applications with leading model providers. We compared 7tools so you don't have to.

OpenAI API

From $0.15/1M tokens (GPT-4o mini)

paid

Build AI-powered applications

GPT-4oAssistants APIFine-tuning

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Anthropic Claude API

From $0.25/1M tokens (Claude Haiku)

paid

AI safety company and Claude model provider

200K context windowComputer useTool use

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Groq

From $0.05/1M tokens

freemium

The fastest AI inference

Ultra-fast inference (500+ tokens/s)Llama 3Mistral

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Google Gemini API

From $0 (free tier available)

freemium

Google's most capable AI model

Gemini 1.5 Pro (1M context)Multimodal (text + image + audio)Function calling

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Together AI

From $0.20/1M tokens

paid

Fast and cheap open source model inference

50+ open modelsCustom fine-tuningOpenAI-compatible API

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Mistral AI

From $0.25/1M tokens (Mistral Small)

freemium

Frontier AI built in Europe

Mistral Large 2Codestral (code model)Multilingual

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Cohere

From $0.40/1M tokens (Command)

freemium

AI language models for enterprise

Command (generation)Embed (embeddings)Rerank

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Head-to-head

AI APIs Comparisons

OpenAI API vs Anthropic Claude API OpenAI API vs Groq OpenAI API vs Google Gemini API OpenAI API vs Together AI OpenAI API vs Mistral AI Anthropic Claude API vs Groq Anthropic Claude API vs Google Gemini API Anthropic Claude API vs Together AI Anthropic Claude API vs Mistral AI Groq vs Google Gemini API Groq vs Together AI Groq vs Mistral AI Google Gemini API vs Together AI Google Gemini API vs Mistral AI Together AI vs Mistral AI

FAQ

Frequently asked questions about ai apis tools

What is the best ai apis tool in 2026?＋

OpenAI API is among the most-used ai apis tools — build ai-powered applications. The best choice depends on your needs: compare all 7 options on pricing, features, and tradeoffs below. There is no single winner for every team.

Is there a free ai apis tool?＋

Most ai apis tools are freemium or paid. Several offer free tiers or trials — check the pricing badge on each tool below for current details.

How much do ai apis tools cost?＋

Pricing for ai apis tools in our list starts as low as $0.05/1M tokens (Groq) and scales with usage and team size. Each tool's starting price is listed below — always verify current pricing on the vendor's site before buying.

How many ai apis tools are compared on DevVersus?＋

We compare 7 ai apis tools side by side, with 15 head-to-head comparisons. Each is reviewed on pricing, features, pros, and cons — independently, with no vendor bias.