COSS Weekly: Databricks acquires Electric, Stripe reportedly acquires OpenRouter, Temporal in talks for $500M, and more

This week's COSS newsletter reports that Stripe is in talks to acquire OpenRouter for over $7 billion, Databricks acquired Electric, and Dynatrace acquired Arize. Temporal is reportedly raising $500 million at a $12 billion valuation, and Synthefy announced a $6.5 million seed round. Modular open-sourced the Mojo programming language under Apache 2.0, and DeepSeek launched an MIT-licensed agent harness.

This week in COSS: Dash0 acquired Polar Signals, while Stripe reportedly reached a deal to acquire OpenRouter for more than $7 billion; Dynatrace acquired Arize, and Databricks acquired Electric. Temporal is reported to be in talks to raise about $500 million at a $12 billion pre-money valuation, and Synthefy announced a $6.5 million seed round led by Wing Venture Capital. In other news, Modular made the Mojo programming language fully open source under Apache 2.0 with LLVM exceptions; TrueFoundry launched TrueForge, an open-source, vendor-neutral alternative to Claude Managed Agents; and DeepSeek launched its MIT-licensed, plugin-based agent harness alongside DeepSeek-V4-Pro. We also feature the following companies in Cossmology: Akon Labs, CrewAI, Predibase, Resemble AI, Sourcegraph, Synthefy, TrueFoundry, VeloDB, VictoriaMetrics, and ZenStack. Companies mentioned: Databricks https://cossmology.com/organizations/databricks , ElectricSQL https://cossmology.com/organizations/electricsql Announcement · Databricks Blog Companies mentioned: DeepSeek https://cossmology.com/organizations/deepseek Announcement · The New Stack Companies mentioned: OpenRouter https://cossmology.com/organizations/openrouter Announcement · TechCrunch Companies mentioned: Modular https://cossmology.com/organizations/modular Announcement · Modular Blog Companies mentioned: Temporal https://cossmology.com/organizations/temporal Funding · Dealroom Companies mentioned: Polar Signals https://cossmology.com/organizations/polar-signals , Dash0 https://cossmology.com/organizations/dash0 Announcement · Dash0 Blog Companies mentioned: Arize AI https://cossmology.com/organizations/arize-ai Announcement · Arize Blog Companies mentioned: Synthefy https://cossmology.com/organizations/synthefy Funding · Synthefy Blog Companies mentioned: TrueFoundry https://cossmology.com/organizations/truefoundry Announcement · The New Stack Companies mentioned: DeepSeek https://cossmology.com/organizations/deepseek Announcement · VentureBeat Tabular data prediction models Enterprise AI gateway for LLMs and agents Code intelligence engine for AI agents Open-source time series database & monitoring AI SDLC platform for code search & editing Platform for fine-tuning large language models Platform for building AI agent workflows Voice AI platform for generation & detection Real-time data warehouse for fast analytics. Full-Stack Toolkit with Authorization on Prisma ORM