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How Capgemini uses Mistral

100%

“Developer adoption jumped from 30% to 100%”

As published on mistral.ai, April 2026. Checked by usedby on Oct 9, 2026.

What happened

Capgemini replaced the open-source model in its self-hosted software engineering assistant with Mistral's Codestral to give developers code completion and chat assistance inside their IDEs. The assistant serves regulated clients in aerospace, defense and public sectors that require self-hosted AI, and covers modern and legacy programming languages.

Summary written by usedby from the source page, in English. The figures are those of Mistral and Capgemini, not ours.

  • 90%“Accuracy jumped from 50% to 90%, which proved to be transformational for the developers experience.”

The results were immediate and impressive. Developer adoption jumped from 30% to 100%, with all approximately 50 client projects reporting productivity savings. "From one day to another all the projects went green," describes the transformation Capgemini experienced across their active client engagements.

From the page. mistral.ai

Leveraging Mistral's Codestral has been a game changer in the adoption of private software engineering assistants for our client projects in regulated sectors.

Alban Alev, VP, Head of Solutioning at Capgemini France. Source

What the story claims, and what we checked

What we compared with the page.

  • The figure: 100%CheckedPrinted word for word on the page, near the name of Capgemini.
  • The passage quoted aboveCheckedCopied word for word from the page, near the name of Capgemini.
  • The publication dateCheckedRead from the page’s own metadata, never guessed.
  • Capgemini uses MistralCheckedConfirmed line.
  • The result itselfNot checkedWe quote it; we did not measure it.

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