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10 layers580 nodes2,376 dependencies95 chokepoints6,500+ companiesnode size = companies identified
← THE STACK

L7

Models & Foundation Labs

The large language models that power most AI products today are produced by a small number of organisations running some of the most expensive training runs ever attempted. This layer covers the frontier closed labs (OpenAI, Anthropic, Google DeepMind), the open-weight releases that challenge them (Meta's Llama, Mistral), specialist fine-tuning providers, training-data suppliers, and the growing evaluation and safety ecosystem that regulators in the US and EU are beginning to mandate. Capability here is what ultimately determines the value of every layer below.

L7INPUTSL7BUYERSMODELS & FOUNDATION LABSSUPPLY SCHEMATIC · L7

THE TAKE

Frontier closed labs hold the capability lead; open-weight models are closing the gap and undercutting price. The investable edges sit to the side: licensed training data, plus the evaluation, red-teaming and safety-assurance market that EU and US regulators are now mandating.

Signals

  • Anthropic holds ~40% of enterprise LLM API spend in 2025, up from ~24% in 2024, ahead of OpenAI at ~27% (Menlo Ventures 2025).
  • Enterprise GenAI spend tripled to ~$37B in 2025 from ~$11.5B in 2024 (Menlo Ventures 2025).
  • Anthropic raised at a ~$380B valuation in early 2026, then moved toward an IPO near ~$965B (company announcements 2026).
  • OpenAI exited 2025 near ~$20B ARR, reaching ~$25B annualized by early 2026 (company / press).

The investment angle

The edge is not picking a winner among frontier labs. It is owning the licensed data, evaluation infrastructure and safety tooling every lab must buy regardless of model-share shifts.

Dominant playerOpenAI / Anthropic / Google DeepMind
ConcentrationAnthropic ~40%, OpenAI ~27%, Google ~21% enterprise spend (Menlo Ventures, 2025)
Key metricFrontier closed labs are the capability chokepoint
GeographyUnited States

Inside this layer, node by node

The atlas data behind this layer: 21 nodes, 1 of them chokepoints. Every node links back into the network map; market figures carry their source.

Open-weight model developersL7.2fragmentedscaling5 companies

Organisations that train and publicly release model weights, enabling self-hosting, fine-tuning and redistribution. They erode pricing power of closed-model providers and complicate US export controls on AI. Value capture is indirect—structural disruption rather than direct margins.

$21B market · 202534.1% CAGRsource ↗
Model training data inputsL7.4fragmentedscaling18 companies

Curated corpora, human annotation pipelines, and synthetic data for training and fine-tuning models. Public web data is saturating; proprietary and synthetic sources increasingly determine model quality. Data owners and synthetic-generation platforms are capturing emerging value.

$2.8B market · 202427.7% CAGRsource ↗
Modality- and domain-specialist model developersL7.5fragmentedemerging23 companies

Labs building models specialised by modality or scientific domain, not generalist frontier labs. Defensible where proprietary domain data, simulation environments, or expert feedback loops create moats. Biology and robotics are prime examples.

Model evaluation, safety and alignment servicesL7.6fragmentedemerging6 companies

Services that test models for capability, failure modes, and adherence to human intent before deployment. Regulatory mandates in the EU and elsewhere are making this compulsory. Value flows to accredited testing firms and consultancies with government or enterprise contracts.

Companies we track

Alphabet (Google DeepMind)
Gemini frontier lab; ~21% enterprise spend
GOOGL · US
Meta AI
Llama; most-deployed open-weight model
META · US
Anthropic
#1 enterprise LLM share; ~$30B ARR run-rate
Private · US
OpenAI
ChatGPT; consumer AI leader
Private · US
xAI
Grok frontier model
Private · US
Mistral AI
European open-weight champion
Private · FR

Supply chain

Raw inputs

Training computeUS
clusters from layers below
Scale AI / SurgeUS
data & labelling

Key suppliers

AnthropicUS
~40% enterprise LLM spend
OpenAIUS
~27% enterprise LLM spend
Google DeepMindUS
~21% enterprise LLM spend
Meta AIUS
open-weight counterweight

Buyers

Cloud model marketplacesUS
Bedrock, Azure, Vertex
Application buildersGlobal
demand side