Build leading AI products
on Rexso's platform

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Powered by our frontier models

Our industry-leading models are designed for real-world utility, delivering advanced intelligence and multimodal capabilities.

Rex-5.4

Input: $2.50 per 1M tokens

Output: $10.00 per 1M tokens

128K context length

Knowledge cutoff: Aug 2025

Rex-5.4 mini

Input: $0.15 per 1M tokens

Output: $0.60 per 1M tokens

128K context length

Knowledge cutoff: Aug 2025

Rex-5.4 nano

Input: $0.10 per 1M tokens

Output: $0.30 per 1M tokens

128K context length

Knowledge cutoff: Aug 2025

Start working with Rex-5.4

Prompting guidance

Learn how to prompt Rex-5.4 for highest performance.

View prompting guidance

Front-end coding examples

Explore front-end applications built with Rex-5.4.

View front-end examples

Migration support

Learn how to migrate from other models to Rex-5.4.

View migration guide

The all-in-one platform for agents

Build, deploy, and optimize production-ready agents faster with pre-built components or from scratch.

Build

Build agents on a visual-first canvas with Agent Builder or in a code-first environment with the Agents SDK.

Deploy

Create customizable, front-end agentic experiences with ChatKit.

Optimize

Run evals to measure agentic performance, and improve results with prompt optimization and fine-tuning.

Enterprise-grade features
for operating at scale

Security and data privacy

  • No training on your data
  • Zero data retention policy by request
  • HIPAA compliance available
  • SOC 2 Type 2 compliance

Administrative controls

  • Role-based access controls
  • Set billing and usage alerts
  • Granular usage and cost visibility

Access to Rexso expertise

  • Dedicated account teams
  • Priority deployment guidance
  • Solution architects collaboration