---
type: email
from: Galen Lewis <notifications@github.com>
subject: Re: [openai/openai-agents-python] GPT-5 does not work well compared

 to 4.1 (Issue #1397)
received: 2026-03-06 07:21:14
date_header: Wed, 03 Sep 2025 11:20:49 -0700
priority: normal
status: awaiting_approval
uid: 29423
---

## Email Content

**From:** Galen Lewis <notifications@github.com>
**Subject:** Re: [openai/openai-agents-python] GPT-5 does not work well compared

 to 4.1 (Issue #1397)
**Date:** Wed, 03 Sep 2025 11:20:49 -0700

### Body (preview)

dibuono left a comment (openai/openai-agents-python#1397)



@sibblegp agreed. Also on OpenRouter the latency is much lower and TPS is much higher for 4.1, so I'll stick with 4.1 for now too.



My only issue with 4.1 right now is it sometimes acts like it's going to call a tool ("Sure, i'll {take xyz action}:"), and then forgets to make the actual tool call (finish_reason = stop with no tool calls outputted). This happens about 3% of the time in my app. That's the only reason im considering the move to GPT 5



-- 

Reply to this email directly or view it on GitHub:

https://github.com/openai/openai-agents-python/issues/1397#issuecomment-3250288924

You are receiving this because you are subscribed to this thread.



Message ID: <openai/openai-agents-python/issues/1397/3250288924@github.com>

---

## Suggested Actions
- [ ] Reply
- [ ] Archive
- [ ] Escalate
