Updated models and usage limits in ChatGPT Voice

What changed

Source summary

ChatGPT Voice now supports GPT-5.6 and GPT-6 Astra, with users able to choose between these models, and daily usage limits for voice have been revised and simplified across subscription tiers.

Why it matters to your work

Practical interpretation

If you use ChatGPT's voice mode, you can now pick between GPT-5.6 and the newer GPT-6 Astra for voice conversations, and the daily usage limits have changed — worth checking your plan's new limits if you rely on voice mode regularly.

When this could help

Review if you use ChatGPT Voice regularly and want to take advantage of the new model selection, or if you need to understand your plan's daily Voice limits.

Voice can now use GPT-5.6 or GPT-6 Astra when it needs to search or reason through harder questions. You pick the model and reasoning effort with the same controls as text chat. The separate Instant/Medium/High Voice intelligence levels are deprecated.

How to get started

1. In Voice mode, use the same model and reasoning effort controls as text chat to select GPT-5.6 or GPT-6 Astra.

   Provider guidance ↗

Build it into your routine

SCALA suggested workflow

1. Voice model selection

   For complex Voice conversations that need search or reasoning, switch to GPT-6 Astra. For routine conversations, stay on the default model to conserve your daily limit.

What to check

• Daily limits vary by plan: Go gets 3h with GPT-Live-1 mini, Plus gets 3h with GPT-Live-1, Pro $100 gets 15h, Pro $200 is unlimited. Source ↗
• Free user limits are not listed. The separate Instant/Medium/High Voice intelligence levels are deprecated. Source ↗