Best Alternatives to OpenAI API

Looking for an alternative to OpenAI API? Whether you need different pricing, features, or simply want to explore your options in the AI Tools space, we've rounded up the top alternatives based on use case overlap and ratings.

Common reasons people look for OpenAI API alternatives include: Most expensive major LLM API per token for flagship GPT-4o model; Rate limits on new accounts restrict high-volume applications until trust is built.

10 Best OpenAI API Alternatives

★★★★★★★★★★
4.8/5

Anthropic API

Free Tier

Safest enterprise LLM API with the largest context window and computer use capability

Claude 3.5 Sonnet leads coding and reasoning benchmarks among all available models
200K context window processes entire codebases in a single API call
Get API Access
★★★★★★★★★★
4.6/5

Google Gemini

Free Tier

Google's multimodal AI with the longest context window and real-time Google Search grounding

Gemini 1.5 Pro offers 1 million token context window for massive document processing
Native multimodal model handles text, images, audio, and video simultaneously
Try Gemini Free
★★★★★★★★★★
4.5/5

Mistral AI

Free Tier

European open-weight LLM with GPT-4 performance at the lowest cost per token in its class

Mistral Large 2 delivers GPT-4-class performance at significantly lower API cost
Open-weight models fully deployable on your own infrastructure with no licensing
Try Mistral Free
★★★★★★★★★★
4.5/5

Replicate

Free Tier

The largest model hosting marketplace - run any open-source AI model via API in seconds

Run any open-source model via API with no GPU setup or infrastructure management
Community publishes thousands of models covering image, video, audio, and text tasks
Try Replicate Free
★★★★★★★★★★
4.4/5

Replit

Free Tier

Only AI coding platform that combines IDE, hosting, and app generation in one browser tab

Browser-based IDE requires zero local setup - code from any device
Replit Agent builds full apps from natural language prompts end to end
Start for Free
★★★★★★★★★★
4.4/5

Together AI

Free Tier

Largest open-source model inference marketplace with the cheapest rates for LLaMA and Mistral

Access 200+ open-source models including LLaMA, Mistral, and FLUX through one API
Inference prices among the lowest available for popular open models
Start Building Free
★★★★★★★★★★
4.4/5

Azure OpenAI

OpenAI models with enterprise SLA, data residency guarantees, and Azure compliance certifications

Enterprise SLA with 99.9% uptime guarantee and dedicated capacity options
Data stays within your Azure tenant - never used to train OpenAI models
Get Started
★★★★★★★★★★
4.3/5

Tabnine

Free Tier

Only enterprise AI code completion with on-premises deployment and licensed-code-only training

Privacy-first AI completion that runs fully on-premises for sensitive codebases
Trained on permissively licensed code only ensuring safe IP and license compliance
Try Tabnine Free
★★★★★★★★★★
4.3/5

Sourcegraph Cody

Free Tier

Only AI coding assistant with whole-codebase search context powered by Sourcegraph's code graph

Reads your entire codebase as context using Sourcegraph's code search engine
Enterprise code graph provides accurate answers about large monorepo architecture
Try Cody Free
★★★★★★★★★★
4.8/5

Claude

Free Tier

Safety-first AI with the largest context window and most honest long-form reasoning

200K token context window processes entire codebases or books at once
Constitutional AI training produces safer and more honest responses
Try It Free

Still considering OpenAI API?

See the full details, features, and pricing on the OpenAI API page before you decide.

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