Datadog surged 31% on Thursday after reporting blockbuster earnings and lifting its guidance for the year, showing how some software names are starting to prove their case as winners in artificial intelligence . Quarterly revenue topped one billion dollars for the first time. The pop fueled rallies in shares of Snowflake and MongoDB , which each climbed 10%. Datadog provides the cloud infrastructure that AI models from OpenAI and Anthropic run on. According to analysts, OpenAI is its biggest customer. CEO Olivier Pomel revealed on the earnings call that the company landed two major hyperscaler customers for training in their superintelligence labs. "This was an eye-popping print," wrote Andrew Sherman, analyst at TD Securities, who called it a "must-own stock." The positivity surrounding Datadog follows strong earnings from Twilio last week.…