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Reason Machines (YC F26)

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@reasonmachines

World's most effective coding agent, now yours. Backed by @ycombinator
reasonmachines.com Joined January 2026
5 Following 15K Followers 1.7K Posts

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Reason Machines (YC F26) Verified account @reasonmachines
Reason just launched!
Adi Singh Verified account @xadisingh 2d
Frontier coding performance at up to 20x lower cost.

Introducing the world’s most cost-efficient harness: Reason

Stop burning thousands on runaway agent bills.

Reason outperforms top harnesses on Terminal-Bench and DeepSWE while dropping cost per task to a fraction of the frontier baseline.

Comment “Reason” and we’ll send you early access + free compute credits.

Try for free:
reasonmachines.com
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Reason Machines (YC F26) Verified account @reasonmachines
We just solved all usage limits on Grok Bot.

Introducing Unlimited Model Usage: when your own subscription runs out, Reason rolls over to our models and keeps going.

On a harness 22% cheaper per solved task than Codex.

Free trial at reasonmachines.com
0:27
Elon Musk Verified account @elonmusk 6d
Just did a round table review with the Grok @Bot engineering team.

Fixes are being implemented overnight and you should notice a dramatic improvement by tomorrow. If not, reply to this post and we will address any remaining issues right away.
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