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Chanto vs LeanWarp

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Chanto compared with LeanWarp
DetailChanto logo ChantoLeanWarp logo LeanWarp
What it doesA fast, lean coding agent for your terminal Hosted Lean 4 API for proof agents
StageNot given MVP
FoundedNot given Not given
Based inNot given Not given
Pricing modelOpen source Paid
PricingNot given Starting at $0.000278 per second of worker time (including idle time, increasing with CPU and RAM usage). $10 minimum credit purchase. $10 free credit for new accounts with verified email while launch offer lasts.
Key features
  • Starts in 13ms and uses only 17MB peak memory
  • Works with any model: local or hosted APIs
  • Reads Claude Code and Codex settings automatically
  • Background runs on separate branches
  • Verifies work by running project checks
  • Undo function to revert changes
  • Sandbox environment for safe command execution
  • Spend limits and usage tracking
  • MCP server support and plugins
  • Scheduled runs
Not given
What makes it different
  • Fastest coding agent: 1.5ms CPU per turn vs 4.2-145ms for other agents
  • Lowest memory footprint at 17MB peak vs up to 960MB for competitors
  • Most efficient token usage on real tasks
  • Single 20MB portable binary requiring no installation
  • Mathlib preloaded in pinned environments
  • Multiple API interfaces (CLI, MCP, Python, HTTP)
  • Kernel-verified proofs with no axioms allowed
  • Draft checking for iterative development
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)80
Referring domains (Majestic)10

3 details filled in for both companies.

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