LLM Market Report 2026: Anthropic vs. OpenAI vs. Google

Last updated: June 2026. Reviewed by Report AI editorial. Every figure on this page is linked to its primary source.

LLM MARKET 2026 — KEY DATA POINTS

40%

Anthropic’s enterprise share
2025 (from 12% in 2023)
Menlo Ventures

$8.4B

Enterprise LLM spend
mid-2025 (2.4× in 6 months)
Menlo Ventures

54%

Coding-market share
Anthropic vs. OpenAI 21%
Menlo Ventures

Enterprise LLM API spend share by provider, 2023–2025 (Menlo Ventures) · See all comparison charts →

The LLM market’s leadership has flipped: Anthropic now earns 40% of enterprise LLM API spend, overtaking OpenAI (27%) for the first time (Menlo Ventures). Enterprise LLM spending hit $8.4 billion mid-2025, more than doubling in six months. Yet the consumer market tells a different story — OpenAI’s ChatGPT still dominates with ~900M weekly users. This page collects the most important primary-sourced LLM market statistics for 2026.

Executive summary

• Fast Fact: Anthropic leads enterprise LLM spend at 40% (up from 12% in 2023); OpenAI fell to 27% (from 50% in 2023); Google reached 21%.
• Coding dominance: Anthropic’s Claude commands ~54% of the enterprise coding market vs. OpenAI’s 21% — a major driver of the share shift.
• Spend explosion: Enterprise LLM spend went from $3.5B (Nov 2024) to $8.4B (mid-2025) — a 2.4× jump in six months.
• Consumer vs. enterprise split: ChatGPT still dominates consumer use (~900M weekly users), but Anthropic’s enterprise lead shows the markets are diverging.

Enterprise LLM market share (API spend)

Menlo Ventures’ enterprise LLM tracker shows a dramatic reshuffling between 2023 and 2025 — OpenAI lost almost half its share while Anthropic more than tripled its own.

Provider	2023	2024	2025
Anthropic	12%	24%	40%
OpenAI	50%	~34%	27%
Google	7%	~12%	21%
Others (Meta, Cohere, Mistral, DeepSeek)	~31%	~30%	~12%

Source: Menlo Ventures, 2025 State of Generative AI in the Enterprise. Top three providers account for ~88% of enterprise LLM API usage.

Deep dive: why Anthropic overtook OpenAI

The shift was driven almost entirely by coding workloads. Claude Code reached $1 billion in annualized revenue within six months of its May 2025 launch, and Anthropic now commands 54% of the enterprise coding market vs. OpenAI’s 21%. Coding is the single largest enterprise GenAI use case (~55% of departmental application-layer spend per Menlo), so leadership there translates directly into share of total enterprise spend.

Consumer market: ChatGPT still dominates

The picture flips on the consumer side. ChatGPT remains the dominant LLM assistant, reaching ~900 million weekly active users in February 2026 (TechCrunch), and OpenAI generates roughly $25 billion in annualized revenue (Sacra). For deeper consumer metrics, see Generative AI Statistics 2026.

Frequently asked questions

Who leads the enterprise LLM market?

Anthropic, with 40% of enterprise LLM API spend in 2025, ahead of OpenAI (27%) and Google (21%), per Menlo Ventures.

How big is the enterprise LLM market?

Enterprise LLM spend reached $8.4 billion mid-2025, up from $3.5 billion in November 2024.

Does OpenAI still dominate consumer AI?

Yes. ChatGPT remains the leading consumer AI assistant with ~900M weekly active users in early 2026, and OpenAI generates roughly $25B in annualized revenue.

Data sources & methodology

1. Menlo Ventures — 2025: The State of Generative AI in the Enterprise, December 2025.
   Verified data points: Anthropic 40% / OpenAI 27% / Google 21% enterprise LLM share; $8.4B enterprise LLM spend mid-2025 (from $3.5B Nov 2024); top 3 providers ~88%; Anthropic 54% / OpenAI 21% coding market.
   Source: menlovc.com
2. TechCrunch / OpenAI — ChatGPT WAU milestones, February 2026.
   Verified data points: ~900M weekly active users.
   Source: techcrunch.com
3. Sacra — OpenAI revenue tracker.
   Verified data points: ~$25B OpenAI annualized revenue (early 2026).
   Source: sacra.com

Related pages: Generative AI Statistics 2026 · Enterprise AI Statistics 2026 · What is an LLM? · Foundation Model