# Unreal Agent for Cost-Efficient AI Agents

> Unreal Agent cuts tool call costs by 40% using async harness.
- Title: Unreal Agent for Cost-Efficient AI Agents · Unreal Labs
- Summary: Unreal Agent cuts tool call costs by 40% using async harness. Unreal Agent reduces AI agent costs by up to 40% compared to Codex through asynchronous tool…
- Keywords: unreal agent, ai agent, cost efficiency, tool calls, asynchronous, codex, harness, technology, startups, Unreal, Agent, Cost-Efficient
- Source: Unreal Labs — https://unreallabs.ai/blog/unreal-agent
- Published: 2026-09-22T00:00:00+00:00
- Read time: 1 min
- Topics: unreal agent, ai agent, cost efficiency, tool calls, asynchronous, codex, pi, harness, technology, startups
## What is Unreal Agent?
Unreal Agent is an AI agent harness that reduces tool management overhead for cost-efficient user interactions.
## How does it work?
It manages tool calls asynchronously so the model doesn't wait for tool responses while processing user input.
## Key benefits
Users steer the agent without waiting for tool calls to finish and more tool work happens per model turn.
## Cost savings
Unreal Agent achieves up to 40% cost savings compared to Codex and up to 20% compared to Pi in real workloads.
## Benchmark results
Unreal Agent outperforms Codex and Pi in coding benchmarks with higher pass rates and lower token usage.
## Why was it built?
To reduce tool management overhead and allow agents to handle multiple tasks without extra token tax.
## How to get started
Unreal Agent offers a Go library, runner executable, and benchmark runner for easy integration.
## Real-world impact
The harness design enables faster tool execution and reduces costs for production AI agents.
## Key takeaway

Unreal Agent reduces AI agent costs by up to 40% compared to Codex through asynchronous tool management.