One API, Every AI Model.
Simple. Unified. Powerful.
Access GPT-4, DALL-E, Midjourney, ElevenLabs, and 50+ AI models through one unified API. No more juggling multiple providers, keys, or billing systems.
Trusted by 27,000+ developers
Enterprise AI Infrastructure
Core API provides enterprise-grade tools for managing, monitoring, and optimizing your AI model usage across all providers.
Access 50+ AI models from OpenAI, Anthropic, Google, and more through one consistent API interface.
Monitor costs, track performance, and optimize usage across all AI models with comprehensive insights.
Smart load balancing automatically routes requests to the fastest available model with instant failover.
Rich SDKs, comprehensive documentation, and powerful debugging tools make integration effortless.
SOC 2 compliant infrastructure with end-to-end encryption and role-based access controls.
Enterprise-grade reliability with redundant infrastructure and automatic failover protection.
Round-the-clock technical support with dedicated account management for enterprise customers.
Auto-scaling infrastructure handles traffic spikes without configuration or performance degradation.
Leading AI Models
Access the world's most advanced AI models through our unified API. From OpenAI's GPT-5 to Anthropic's Claude and Google's Gemini.
| MODEL | CONTEXT | INPUT/1M | OUTPUT/1M |
|---|---|---|---|
 DeepSeek / DeepSeek V3.1 Chat | 128K | $ 0.588 | $ 1.764 |
 OpenAI / GPT-5 Chat | $ 1.3125 | $ 10.5 | |
 Anthropic / Claude Opus 4.1 | 200K | $ 15.75 | $ 78.75 |
 Google / Gemini 2.5 Flash | 1M | $ 0.315 | $ 2.625 |
 xAI / Grok 4 | 256K | $ 3.31 | $ 16.54 |
How Core API Works
Access any AI model through one unified API in four simple steps. From experimentation to production-scale AI applications.
Choose AI Models
Browse our catalog of 50+ AI models including GPT-4, DALL-E, Midjourney, ElevenLabs, and more. Compare capabilities, pricing, and performance in one unified dashboard.
One API Integration
Get a single API key that works with all AI providers. No more managing multiple accounts, credentials, or billing systems across different AI platforms.
Test & Optimize
A/B test different AI models, monitor performance, and automatically route requests to the best-performing models for your specific use case.
Scale with Confidence
Enterprise-grade infrastructure with automatic failover, load balancing, and 99.9% uptime. Scale from prototype to millions of requests seamlessly.
Ready to access every AI model through one powerful API?
Trust, Reliability, Compliance
Enterprise‑grade infrastructure with transparent status, strong security, and strict data protection.
Used by entreprenurs
Proactiv is used by serial entrepreneurs and overachievers.
Core API eliminated the nightmare of managing dozens of API keys. Now we access GPT-4, DALL-E, and ElevenLabs through one simple interface. Our integration time went from weeks to hours.
Sarah Chen
AI Product Manager
The unified billing and analytics are incredible. We can see exactly how much we spend on each AI model and optimize our usage across different providers seamlessly.
Marcus Rodriguez
CTO, AI Startup
Being able to switch from OpenAI to Claude or Midjourney to Stable Diffusion with just a parameter change saved us when OpenAI had that outage last month.
Emily Johnson
ML Engineer
Core API's fallback system is a lifesaver. When one image generation model is overloaded, it automatically switches to alternatives. Our users never see downtime.
David Kim
Lead Developer
We built an entire creative suite using Core API - text generation, image creation, voice synthesis, and music. Having all AI models in one place is revolutionary.
Lisa Zhang
Creative Tech Director
The transparent pricing and detailed usage analytics help us budget AI costs effectively. No more surprise bills or hidden fees from multiple AI providers.
Alex Thompson
Engineering Manager
Core API's smart routing automatically chooses the fastest AI model for our image generation tasks. What used to take 30 seconds with Midjourney now averages 8 seconds with intelligent load balancing.
Jessica Park
AI Researcher
We experimented with GPT-4, Claude, and Gemini side-by-side through Core API. The A/B testing features helped us discover Claude performs 25% better for our legal document analysis use case.
Ryan Foster
Data Scientist
Core API's multimodal workflows are incredible. We chain DALL-E for images, ElevenLabs for voice, and GPT-4 for scripts - all in one seamless pipeline for our content creation.
Nicole Wang
Creative Director
The cost optimization features saved us 60% on AI spending. Core API automatically routes requests to the most cost-effective model that meets our quality threshold.
Christopher Lee
ML Operations Engineer
Having all major AI models accessible through one secure API eliminated our compliance headaches. Now we can experiment with new models without separate security reviews.
Amanda Silva
AI Security Specialist
Core API's model health monitoring prevented disasters twice this month. When OpenAI had issues, our traffic seamlessly failed over to Anthropic without user impact.
Jordan Miller
AI Infrastructure Engineer
The unified usage analytics across all AI providers give us insights we never had before. We can now predict AI costs and optimize model selection based on real performance data.
Kevin Adams
AI Strategy Director
Core API's prompt management system lets our team collaborate on prompt engineering. Version control for prompts across GPT-4, Claude, and Gemini is a game-changer.
Sophie Carter
Prompt Engineer
The ability to fine-tune models from different providers through one interface accelerated our research. We can now compare fine-tuned GPT-4 vs Claude vs Llama side by side.
Matthew Turner
AI Research Lead
Core API's real-time model switching saved our product launch. When DALL-E went down, we instantly switched to Stable Diffusion and our users never noticed.
Rachel Green
AI Product Manager
Frequently asked questions
Get started today with Core API to accelerate your development
Core API provides the best in class developer tools to accelerate your API development journey. Join 127,000+ other developers to get started.
Trusted by 27,000+ developers
