Tidelines — LLM usage and market share

Head to head · 2026-10-14

OpenAI logoOpenAI: GPT-5.6 Luna vs StepFun logoStepFun: Step 5 Preview

Data source

Token share

OpenAI logoOpenAI: GPT-5.6 Luna

1.07%

StepFun logoStepFun: Step 5 Preview

14.17%

30d Δ

OpenAI logoOpenAI: GPT-5.6 Luna

-13.08pp

StepFun logoStepFun: Step 5 Preview

+11.59pp

Price — $ / M output

OpenAI logoOpenAI: GPT-5.6 Luna

$1.20

StepFun logoStepFun: Step 5 Preview

$2.70

Context window

OpenAI logoOpenAI: GPT-5.6 Luna

1050k

StepFun logoStepFun: Step 5 Preview

1049k

Share of tokens over time

Tidelines — LLM usage and market share
Source: OpenRouter (openrouter.ai/rankings), as of 2026-10-14. Vercel AI Gateway data as of 2026-10-14. · tidelines.ai/compare/openai-gpt-5-6-luna-20260709-vs-stepfun-step-5-preview-20261008

Detail pages: OpenAI: GPT-5.6 Luna · StepFun: Step 5 Preview