Code Metal vs Swimm (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: Code Metal does not list a price
Free plan
Tie
Neither has one
Higher rating
Swimm
4.0 against 4.1
Same job?
Yes
Both are Coding tools

Side by side

Compared on	Code Metal	Swimm
Our rating	4.0	4.1Better
Starts at	Not listed	Not listed
Free plan	No	No
Category	Coding	Coding
Plans	See pricing	See pricing
Key features	Formal verification proving functional equivalence, not just plausible output Auto-generated test suites reaching full MCDC coverage Static analysis segments codebases into independently verifiable components Supports C++, Python, VHDL, CUDA, Rust, and other systems languages Reports reducing manual coding time by at least 80% on qualifying work	Deterministic static analysis before any AI transformation System understanding and architecture mapping Dead-code analysis MCP-queryable knowledge base On-premises and air-gapped deployment
Pros	Formal verification addresses certification requirements general coding tools ignore Real traction in defense and aerospace, not just a stated ambition Supports systems-level languages most AI coding tools don't touch	Static analysis gives checkable ground truth before the model acts Audit readiness built into the approach Air-gapped deployment for regulated estates
Cons	Pricing isn't published, requires a sales conversation Narrow focus on regulated, safety-critical industries limits general applicability Less relevant to a team writing standard web or application code	No amounts published for any of the four stages A services engagement rather than software you adopt Modernisation fails organisationally more often than technically
Company	Code Metal, founded 2023	Swimm

Prices come from each vendor's pricing page, last checked 20260814. Check the vendor before you buy.

FAQ

Questions people ask

Is Code Metal better than Swimm?

In our reviews Code Metal scores 4.0 and Swimm scores 4.1. The better pick depends on the job. Code Metal: Formally verified code translation for aerospace, defense, and automotive systems. Swimm: Legacy modernisation as a service: static analysis first, then AI and senior engineers.

Which is cheaper, Code Metal or Swimm?

Code Metal: see pricing. Swimm: see pricing.

Do Code Metal and Swimm have free plans?

Neither lists a free plan.

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