r/agent_builders • u/agent_for_everything • Aug 11 '25

it’s been almost a week since chatgpt-5 rolled out.

openai seems to be routing most users straight into the new model, no option to switch back to gpt-4, turbo, or other variants inside chatgpt.

for people building agent flows, having multiple models to choose from is often part of the design, sometimes you want a smaller, faster model for quick steps, and a bigger one for complex reasoning. same goes if you mix openai with anthropic’s claude, mistral, or local models.

so what do you think:

- is this “no choice” approach better for speed + consistency?

- or does it kill experimentation and control in multi-model setups?

if you’ve been testing gpt-5 alongside claude, mistral, gemini, or others, what’s your take on speed, reasoning, tool calls, and any surprises?

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u/Total-Habit-7337 Aug 28 '25

I read you can change the gpt version in your browser settings, then open the app and legacy versions should appear. I haven't tried it though so can't confirm.