Market share · 2026-09-12

LLM market share

Share of real API traffic, measured in tokens across public AI gateways. Not survey data, not vendor claims — the tokens that actually moved yesterday.

Leading lab

24.7%

OpenAI

Leading model

22.75%

OpenAI: GPT-5.6 Luna

Open-weight share

58.8%

of tracked tokens

Tokens / day

16T

50 models

The state of the LLM market in September 2026

OpenAI holds 24.7% of tracked tokens across 5 models, +14.20pp over 30 days. DeepSeek follows at 21.4%, then Tencent at 11.5%. Open-weight models together account for 58.8% of traffic — the single clearest signal of how much of the market is price-driven rather than brand-driven.

Token share and dollar share are different markets. The tracked models represent about $26.0M per day at list prices, and the labs at the top of the token table are rarely the labs at the top of the spend table. The spend view separates the two.

These figures are free to cite under CC BY 4.0. Attribute to “Tidelines (tidelines.ai),2026-09-12”.

Market share by lab

Share of gateway tokens on the latest archived day, all models combined.

Tidelines — LLM usage and market share
Data: OpenRouter as of 2026-09-12 · Source: tidelines.ai/llm-market-share

Market share by model

Top 20 individual models by share of gateway tokens.

Tidelines — LLM usage and market share
#ModelLabShare %30d Δ
1OpenAI: GPT-5.6 LunaOpenAI22.75+15.66pp
2Tencent: Hy4 previewTencent8.76+6.35pp
3DeepSeek: DeepSeek V4.1 FlashDeepSeek8.37+4.84pp
4DeepSeek: DeepSeek V4 Flash 0731DeepSeek7.88-6.79pp
5Z.ai: GLM 5.3 FlashZ-AI7.88+5.92pp
6Xiaomi: MiMo-V2.5Xiaomi5.63+1.46pp
7NVIDIA: Nemotron 3 UltraNvidia3.47+2.17pp
8DeepSeek: DeepSeek V4 Flash 0423DeepSeek2.97-3.18pp
9Tencent: Hy3Tencent2.78-10.67pp
10Meta: Muse Spark 1.3 ContributorOther1.50+0.74pp
11Upstage: Solar Pro 4Other1.41+0.93pp
12Z.ai: GLM 5.3Z-AI1.37+0.83pp
13Google: Gemini 3.8 FlashGoogle1.34+1.04pp
14DeepSeek: DeepSeek V4 Pro 0423DeepSeek1.10-2.86pp
15MiniMax: MiniMax M3MiniMax1.06-0.85pp
16Z.ai: GLM 5.2Z-AI1.03-4.62pp
17Poolside: Laguna S 2.1Other0.98-1.25pp
18MoonshotAI: Kimi K3Moonshot0.98-1.18pp
19Anthropic: Claude Sonnet 5Anthropic0.76-1.01pp
20OpenAI: GPT-5.6 SolOpenAI0.76-0.19pp
Data: OpenRouter as of 2026-09-12 · Source: tidelines.ai/llm-market-share

LLM market share FAQ

Which AI lab has the largest LLM market share?
OpenAI leads with 24.7% of tracked gateway tokens as of 2026-09-12, ahead of DeepSeek at 21.4%.
How is LLM market share measured here?
By tokens, not revenue or headlines. Tidelines archives daily token volumes published by public AI gateways (OpenRouter and Vercel AI Gateway) and computes each model's and lab's share of that total. It is a measure of developer API traffic, not of consumer chatbot users.
How many models and labs are tracked?
50 models across 14 labs on the latest archived day (2026-09-12), representing roughly 16T tokens per day.
Can I cite these market share numbers?
Yes. The data is published under CC BY 4.0 — cite "Tidelines (tidelines.ai)" with the date of the snapshot you used.