OpenRouter raises $113M Series B led by CapitalG
CapitalG leads; NVentures, ServiceNow, MongoDB, Snowflake, and Databricks back OpenRouter as it scales to 25T weekly tokens and 8M+ developers across 400+ models.
By Ryan Merket ·
Why it matters
Enterprises are moving from single-model pilots to multimodel production. A neutral routing layer promises reliability, price/performance, and compliance without vendor lock-in.
OpenRouter has raised a $113 million Series B, led by CapitalG, the growth fund backed by Alphabet, with participation from NVentures (NVIDIA), ServiceNow Ventures, MongoDB Ventures, Snowflake Ventures, Databricks Ventures, AMP PBC, and Pace Capital, alongside existing investors Andreessen Horowitz and Menlo Ventures, the company said in a blog post.
Founded in 2023 with a thesis of eliminating model vendor lock-in, OpenRouter positioned itself as an API gateway and routing layer that sits between AI agents/apps and model providers. The team built a single, OpenAI-compatible interface over hundreds of models and dozens of providers, betting that the multimodel era would demand a neutral, production-grade gateway rather than single-vendor SDKs.
The investor lineup underscores that bet. CapitalG and NVentures join the venture arms of enterprise platform and data companies that many CIOs already rely on: ServiceNow, MongoDB, Snowflake, and Databricks. In its announcement, OpenRouter framed the round as more than capital: a signal that the routing and gateway layer is becoming a standard part of the enterprise AI stack as organizations move from single-model pilots to multimodel production systems.
By the numbers
Over the last six months, OpenRouter reports in its Series B announcement that weekly volume grew from 5 trillion to 25 trillion tokens, and it expects to process over a quadrillion tokens this year. The company says it now serves 8M+ developers building across 400+ models via its unified API.
What they have been shipping
OpenRouter has expanded beyond text into multimodal inference, adding support for image, audio, speech, transcription, embeddings, and video. On the enterprise side, it introduced Workspaces with spend controls, guardrails, and zero-data-retention policies to tighten compliance for large deployments.
The core of the product remains routing. OpenRouter handles provider-level failover and cost/latency optimization, and it has been investing in quality-aware routing to pick the right model and provider per request rather than simply load-balancing. The company says it will use the new funding to keep scaling its infrastructure, deepen enterprise features, and advance intelligent routing so teams can reliably choose the best path for every call.
How it fits
OpenRouter pitches itself as the connective tissue between apps/agents and the sprawling model ecosystem across providers like OpenAI, Anthropic, Google, Amazon, Microsoft, NVIDIA, Mistral, Cohere, and others. With organizations standardizing on multi-model strategies for resilience, price/performance, and capability coverage, a neutral gateway with fine-grained data policies is an attractive alternative to wiring directly to each provider and owning the operational complexity.