New GPT-5 and Claude Opus 4 models added

Access all language models
with one API

OpenAI, Anthropic, Google and more. Reach the best AI models with a single, unified integration.

example.ts
const response = await fetch("https://api.neuralback.com/v1/chat", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": `Bearer ${process.env.NEURALBACK_API_KEY}`
  },
  body: JSON.stringify({
    model: "gpt-4o",
    messages: [
      { role: "user", content: "Hello, how are you?" }
    ]
  })
})

const data = await response.json()
console.log(data.choices[0].message.content)

Leading AI Models

Access the latest and most powerful language models with a single API

OpenAI Models

GPT-5

Most Popular

OpenAI

Most advanced general-purpose language model

$0.03 / 1K tokens

GPT-4o

OpenAI

Optimized GPT-4 version

$0.015 / 1K tokens

GPT-4 Turbo

OpenAI

Fast and economical GPT-4

$0.01 / 1K tokens

Anthropic Models

Claude Opus 4

New

Anthropic

Most powerful Claude model

$0.025 / 1K tokens

Claude Sonnet 3.5

Anthropic

Balance of speed and performance

$0.012 / 1K tokens

Claude Haiku 3

Anthropic

Fast and economical model

$0.008 / 1K tokens

Google Models

Gemini Pro 2.0

Google

Google's most advanced model

$0.02 / 1K tokens

Gemini Flash 2.0

Google

Optimized for fast inference

$0.005 / 1K tokens

Token Credit Packages

Purchase credits and use them as you need. No expiration, no hidden fees.

Starter

Perfect for testing and small projects

$10

100K tokens

  • 100,000 tokens
  • Access to all models
  • No expiration date
  • Pay once, use anytime
Most Popular

Pro

Best value for regular usage

$50

500K tokens

  • 500,000 tokens
  • Access to all models
  • No expiration date
  • Best value per token
  • Priority support

Enterprise

For high-volume usage

$100

1M+ tokens

  • 1,000,000+ tokens
  • Access to all models
  • No expiration date
  • Custom credit packages
  • 24/7 dedicated support

Ready to get started?

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