Head to head · 2026-09-01
Upstage: Solar Pro 4 vs 
OpenAI: GPT-5.6 Luna
Data source
Token share
Upstage: Solar Pro 4
1.04%
OpenAI: GPT-5.6 Luna
10.88%
30d Δ
Upstage: Solar Pro 4
+0.59pp
OpenAI: GPT-5.6 Luna
+2.44pp
Price — $ / M output
Upstage: Solar Pro 4
$0.12
OpenAI: GPT-5.6 Luna
$1.20
Context window
Upstage: Solar Pro 4
524k
OpenAI: GPT-5.6 Luna
1050k
Share of tokens over time
Detail pages: Upstage: Solar Pro 4 · OpenAI: GPT-5.6 Luna