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Composer: Building a fast frontier model with RL

cursor.com

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Re: Composer: Building a fast frontier model with RL

#21

Post by davidgomes »

pqdbr wrote: post #15
solarkraft wrote: post #10

People on here love to be contrarian about Cursor, but I’ve tried all the popular alternatives (Copilot, Claude Code, Codex, Gemini CLI, Cline) and found Cursor’s overall experience to just be unmatched. A big part of that is its speed, another its reliability. It’s the only coding agent I’m actually really motivated to use out of the box because it really does make me feel more productive while the others keep messi…

I dropped cursor for the precise reason you mention: reliability. Countless times my requests in the AI chat just hang there for 30+ seconds more until I can retry them. When I decided to give Claude Code a try (I thought I didn't need it because I used Claude in Cursor) I couldn't believe how faster it was, and literally 100% reliable. EDIT: given today's release, decided to give it a go. The Composer1 model _is_ fa…

A lot of progress is being made here on the Cursor side I encourage you to try it again.

(Cursor dev)

Re: Composer: Building a fast frontier model with RL

#22

Post by srush »

jasonjmcghee wrote: post #11

Maybe I'm an outlier but Sonnet 4.5 quality is about as low as I'm willing to go. It's generation speed is not the problem or the time sink. It's wrestling with it to get the right output. --- And just to clarify as maybe I misunderstood again but people are comparing cursor to Claude Code and codex etc here- isn't this whole article all cursor just using different models?

Agree that Sonnet 4.5 is an excellent model. Would be curious to hear your experience using Composer though, it's quite good.

Re: Composer: Building a fast frontier model with RL

#23

Post by swyx »

jasonjmcghee wrote: post #11

Maybe I'm an outlier but Sonnet 4.5 quality is about as low as I'm willing to go. It's generation speed is not the problem or the time sink. It's wrestling with it to get the right output. --- And just to clarify as maybe I misunderstood again but people are comparing cursor to Claude Code and codex etc here- isn't this whole article all cursor just using different models?

> Sonnet 4.5 quality is about as low as I'm willing to go.

literally a 30 day old model and you've moved the "low" goalpost all the way there haha. funny how humans work

Re: Composer: Building a fast frontier model with RL

#24

Post by cleak »

pqdbr wrote: post #15
solarkraft wrote: post #10

People on here love to be contrarian about Cursor, but I’ve tried all the popular alternatives (Copilot, Claude Code, Codex, Gemini CLI, Cline) and found Cursor’s overall experience to just be unmatched. A big part of that is its speed, another its reliability. It’s the only coding agent I’m actually really motivated to use out of the box because it really does make me feel more productive while the others keep messi…

I dropped cursor for the precise reason you mention: reliability. Countless times my requests in the AI chat just hang there for 30+ seconds more until I can retry them. When I decided to give Claude Code a try (I thought I didn't need it because I used Claude in Cursor) I couldn't believe how faster it was, and literally 100% reliable. EDIT: given today's release, decided to give it a go. The Composer1 model _is_ fa…

This is the exact reason I left Cursor for Claude Code. Night and day difference in reliability. The Windows experience might be especially bad, but it would get constantly hung or otherwise fail when trying to run commands. I also had to babysit Cursor and tell it to continue for mid sized tasks.

Re: Composer: Building a fast frontier model with RL

#25

Post by dagss »

jonasnelle wrote: post #12

Cursor has the best Tab model, and I feel like their lead there has kept growing - they're doing some really cool things there. https://cursor.com/blog/tab-rl I wonder how much the methods/systems/data transfer, if they can pull off the same with their agentic coding model that would be exciting.

It's great. BUT: Wish they had selected another shortcut like shift+tab.

Every time I write code myself I find myself racing the AI to get an indentation in before the AI is done... gets annoying

Re: Composer: Building a fast frontier model with RL

#26

Post by chasebank »

pqdbr wrote: post #15
solarkraft wrote: post #10

People on here love to be contrarian about Cursor, but I’ve tried all the popular alternatives (Copilot, Claude Code, Codex, Gemini CLI, Cline) and found Cursor’s overall experience to just be unmatched. A big part of that is its speed, another its reliability. It’s the only coding agent I’m actually really motivated to use out of the box because it really does make me feel more productive while the others keep messi…

I dropped cursor for the precise reason you mention: reliability. Countless times my requests in the AI chat just hang there for 30+ seconds more until I can retry them. When I decided to give Claude Code a try (I thought I didn't need it because I used Claude in Cursor) I couldn't believe how faster it was, and literally 100% reliable. EDIT: given today's release, decided to give it a go. The Composer1 model _is_ fa…

I use cursor daily, my business partner uses CC. Without a doubt, CC is certainly better, I'm just not willing to let go of the flow I spent the last year fine tuning. I'll probably make the leap after we finish the latest release.

Re: Composer: Building a fast frontier model with RL

#27

Post by ramon156 »

solarkraft wrote: post #10

People on here love to be contrarian about Cursor, but I’ve tried all the popular alternatives (Copilot, Claude Code, Codex, Gemini CLI, Cline) and found Cursor’s overall experience to just be unmatched. A big part of that is its speed, another its reliability. It’s the only coding agent I’m actually really motivated to use out of the box because it really does make me feel more productive while the others keep messi…

You tried Claude and still prefer cursor?

Re: Composer: Building a fast frontier model with RL

#29

Post by jonasnelle »

cleak wrote: post #24
pqdbr wrote: post #15

Earlier quoted context omitted.

I dropped cursor for the precise reason you mention: reliability. Countless times my requests in the AI chat just hang there for 30+ seconds more until I can retry them. When I decided to give Claude Code a try (I thought I didn't need it because I used Claude in Cursor) I couldn't believe how faster it was, and literally 100% reliable. EDIT: given today's release, decided to give it a go. The Composer1 model _is_ fa…

This is the exact reason I left Cursor for Claude Code. Night and day difference in reliability. The Windows experience might be especially bad, but it would get constantly hung or otherwise fail when trying to run commands. I also had to babysit Cursor and tell it to continue for mid sized tasks.

They've improved performance dramatically in the last few weeks, might have fixed your issues.
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