GreenStack — pick the lowest-carbon LLM provider for each task
An enterprise console that routes each internal AI request to the lowest-carbon provider that still meets a quality threshold, reports Scope-3 savings to your sustainability team, and produces audit-ready CSRD disclosures.
sustainability officers and platform teams at mid-to-large enterprises running internal LLM workloads
- Per-request carbon estimate using provider-disclosed energy intensity and live grid mix
- Quality-graded routing so a hard task still goes to GPT-class models while easy prompts route to greener models
- Automatic CSRD and SEC climate disclosure export
- A 'shadow run' mode that compares green-routed answers against current provider for two weeks before switchover
Microsoft, Amazon and Google just reported rising carbon totals directly tied to AI workloads — sustainability teams now urgently need a defense they can present to boards and regulators.
CSRD mandates Scope 3 AI emissions disclosure for 50,000+ EU companies by 2026, and Microsoft/Google/Amazon have publicly tied rising carbon totals to AI workloads — urgent board/regulator pressure is real and well-documented.The first CSRD reporting software for AI emissions disclosure ↗AI Security Goes Carbon-Aware as Cloudflare, Microsoft, Google Rewire Energy for Models ↗
Highly crowded: Sphere/Govarix already sells CSRD AI carbon reporting, Watershed and Persefoni ($100M+ raised) are extending into AI-specific emissions, Cloudflare AI Gateway offers dynamic routing, and Microsoft Research has EcoServe carbon-aware inference — a pure-play 'green router' is being absorbed from multiple sides.Govarix: Enterprise AI Platform for Regulated Industries — Sphere ↗Cloudflare AI Gateway - AI Application Control Plane ↗EcoServe: Designing Carbon-Aware AI Inference Systems ↗
Enterprise CSRD/sustainability software commands high ACVs (Watershed, Persefoni each raised $100M+) and manual CSRD work costs €5,000–€20,000 per filing, proving willingness to pay — but the routing layer alone risks being a feature absorbed into hyperscaler gateways rather than a standalone product.CSRD AI Emissions Reporting: A Practical Step-by-Step Guide ↗Persefoni vs Watershed: ESG Reporting Platform Comparison ↗
CSRD enforcement (2026) and EU AI Act create durable regulatory demand, and climate disclosure is expanding globally — but hyperscalers (Cloudflare, Microsoft, Google) are already baking carbon-aware routing into their own platforms, threatening long-term standalone viability.The first CSRD reporting software for AI emissions disclosure ↗AI Security Goes Carbon-Aware as Cloudflare, Microsoft, Google Rewire Energy for Models ↗
Hard to build credibly: per-token, per-region, real-time carbon data from LLM providers is not publicly available, the quality-vs-carbon threshold requires continuous benchmarking across models, and CSRD audit-trail requirements add significant engineering overhead — a non-trivial integration across multiple LLM APIs.Green-AI API - GitHub ↗The first CSRD reporting software for AI emissions disclosure ↗