v3.26.1
Commitment and Contingencies (Details)
$ in Millions, € in Billions
12 Months Ended 22 Months Ended
Nov. 07, 2025
claim
Oct. 03, 2025
claim
Sep. 11, 2025
claim
Dec. 23, 2024
lawsuit
Feb. 15, 2023
officer_and_director
plaintiff
Apr. 30, 2026
USD ($)
Apr. 30, 2025
USD ($)
Apr. 30, 2024
USD ($)
Mar. 26, 2024
claim
Feb. 27, 2024
EUR (€)
Long-term Purchase Commitment [Line Items]                    
Purchase commitment, incurred cost           $ 104.6 $ 117.1 $ 43.1    
The Reckstin Family Trust v. C3.ai, Inc. | Settled Litigation                    
Long-term Purchase Commitment [Line Items]                    
Number of additional plaintiffs | plaintiff         3          
Number of current and former officers and directors | officer_and_director         4          
Suri V. Siebel Et Al., Rabasca V. Siebel Et Al., Vo V. Siebel Et Al, Lanfair V. Siebel Et Al. And Pankow V. Siebel Et Al. | Pending Litigation                    
Long-term Purchase Commitment [Line Items]                    
Number of actions filed | claim                 6  
Enel | Pending Litigation                    
Long-term Purchase Commitment [Line Items]                    
Number of actions filed | lawsuit       2            
Gain contingency, compensatory damages sought | €                   € 2.1
Number of patents allegedly infringed | lawsuit       2            
Jaffee v. Siebel et al., Joshua Steffens V. C3.ai, Inc. Et Al., And Fernicola v. Siebel et al. | Pending Litigation                    
Long-term Purchase Commitment [Line Items]                    
Number of actions filed | claim 3 3 3              
Cloud Hosting Services                    
Long-term Purchase Commitment [Line Items]                    
Remaining amount committed           379.8        
Professional services                    
Long-term Purchase Commitment [Line Items]                    
Remaining amount committed           $ 61.6        
Professional services | Minimum                    
Long-term Purchase Commitment [Line Items]                    
Purchase commitment, term (in years)           1 year        
Professional services | Maximum                    
Long-term Purchase Commitment [Line Items]                    
Purchase commitment, term (in years)           4 years