Tidelines — LLM usage and market share

Head to head · 2026-09-10

DeepSeek logoDeepSeek: DeepSeek V4.1 Flash vs OpenAI logoOpenAI: GPT-5.6 Luna Pro

Data source

Token share

DeepSeek logoDeepSeek: DeepSeek V4.1 Flash

3.54%

OpenAI logoOpenAI: GPT-5.6 Luna Pro

0.29%

30d Δ

DeepSeek logoDeepSeek: DeepSeek V4.1 Flash

0.00pp

OpenAI logoOpenAI: GPT-5.6 Luna Pro

-1.05pp

Price — $ / M output

DeepSeek logoDeepSeek: DeepSeek V4.1 Flash

$0.60

OpenAI logoOpenAI: GPT-5.6 Luna Pro

$1.20

Context window

DeepSeek logoDeepSeek: DeepSeek V4.1 Flash

1049k

OpenAI logoOpenAI: GPT-5.6 Luna Pro

1050k

Share of tokens over time

Tidelines — LLM usage and market share
Data: OpenRouter, Vercel AI Gateway as of 2026-09-10 · Source: tidelines.ai/compare/deepseek-deepseek-v4-1-flash-vs-openai-gpt-5-6-luna-pro

Detail pages: DeepSeek: DeepSeek V4.1 Flash · OpenAI: GPT-5.6 Luna Pro