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  "markdown": "Co-founder, Arize AI.\n\nJason Lopatecki is co-founder and CEO of Arize AI, an observability and evaluation company for AI models and agents. He was earlier co-founder and chief innovation officer of TubeMogul, which went public and was acquired by Adobe. In August 2026 he announced an agreement for Dynatrace to acquire Arize.\n\n## What Jason builds\n\n- [Arize Phoenix](https://www.anchorterminal.com/tools/arize-phoenix.md), graded BB, 75.8/100, in Agent observability \u0026 evals. Self-hosted tracing, evaluation, datasets, experiments and prompt management built on OpenTelemetry and OpenInference. Co-founder, Arize AI, researched 2026-10-26.\n\n## Works with\n\n- [Aparna Dhinakaran](https://www.anchorterminal.com/people/aparna-dhinakaran/), Co-founder, Arize AI\n\n## Backed by\n\n- [Battery Ventures](https://www.anchorterminal.com/investors/battery-ventures/)\n- [TCV](https://www.anchorterminal.com/investors/tcv/)\n- [Foundation Capital](https://www.anchorterminal.com/investors/foundation-capital/)\n- [Swift Ventures](https://www.anchorterminal.com/investors/swift-ventures/)\n- [Adams Street Partners](https://www.anchorterminal.com/investors/adams-street-partners/)\n- [Microsoft](https://www.anchorterminal.com/investors/microsoft/)\n- [SineWave Ventures](https://www.anchorterminal.com/investors/sinewave-ventures/)\n- [OMERS Ventures](https://www.anchorterminal.com/investors/omers-ventures/)\n- [Datadog](https://www.anchorterminal.com/investors/datadog/)\n- [PagerDuty](https://www.anchorterminal.com/investors/pagerduty/)\n- [Industry Ventures](https://www.anchorterminal.com/investors/industry-ventures/)\n- [Archerman Capital](https://www.anchorterminal.com/investors/archerman-capital/)\n\n## Questions\n\n### Who is Jason Lopatecki?\n\nJason Lopatecki is co-founder and CEO of Arize AI, an observability and evaluation company for AI models and agents. He was earlier co-founder and chief innovation officer of TubeMogul, which went public and was acquired by Adobe. In August 2026 he announced an agreement for Dynatrace to acquire Arize.\n\n### What does Arize AI make?\n\nAnchor Terminal lists Arize Phoenix from Arize AI. Self-hosted tracing, evaluation, datasets, experiments and prompt management built on OpenTelemetry and OpenInference.\n\n### Who has invested in Arize AI?\n\nThe sources our research read name Battery Ventures, TCV, Foundation Capital, Swift Ventures, Adams Street Partners, Microsoft, SineWave Ventures, OMERS Ventures, Datadog, PagerDuty, Industry Ventures and Archerman Capital.\n\n### How are Jason's tools graded?\n\nArize Phoenix is graded BB, 75.8 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.\n\n## Sources\n\n- https://arize.com/about/\n- https://arize.com/phoenix/\n- https://arize.com/docs/phoenix\n- https://arize.com/contact/\n\nThese are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page, /about/#author). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.\n",
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