How to add GPT-5 to your AI Agents

Published: Aug 12, 2025

Overview

OpenAI has released the GPT-5 family of models. These are the most advanced models yet, offering faster performance and deep reasoning abilities.

• GPT-5 - Flagship model with adaptive reasoning, industry-leading benchmark scores in coding, math, and medical tasks, precise multi-tool orchestration, and significantly reduced hallucinations compared to 4o.
• GPT-5 Mini - Faster, cost-efficient, and ideal for high-volume or lighter workloads without sacrificing reasoning quality.
• GPT-5 Nano - Ultra-low-latency, ultra-lightweight model built for real-time, edge, and embedded applications.

💡Keep an eye out for our upcoming blog: When to use GPT-5, GPT-5 Mini or GPT-5 Nano.

Step 1 - Update the Prompt

1. Log into the Syllable Console.
2. Click Prompts in the navigation menu on the left.
3. Select the agent that you want to update and then click "Edit."
4. Under Model set Provider to OpenAI, set the Model to GPT-5 and select the latest Version.
5. Click Save.

💡 Tip: If you're using the SDK, you can find details for updating prompts at docs.syllable.ai.

Step 2 - Test your agent

• Now click on Agent in the navigation menu on the left.
• Select the Agent whose prompt you updated and click on "Start Session".
• Put it through the paces, which depends on your use case. Pay attention to outcomes, tool calls, etc.
• Congratulations, you've deployed and tested the latest, most powerful model from OpenAI.

💡 Dive deeper into the platform in our Syllable Docs.

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