All models
Head to head
Grok 4.5 vs Kimi K3.1 Pro
Price, context, inputs and filters. No benchmarks theatre.
Grok 4.5 costs 1.1× less per message.
Kimi K3.1 Pro holds 2.1× more context.
Made by
X-AI
Moonshot AI
Content tier
Open
Open
Intelligence
Brilliant
Brilliant
Estimated price per message
~5.33 credits≈ 18 messages for 1 €
~6.11 credits≈ 16 messages for 1 €
Context window
500K tokens≈ 769 pages of text in one go
1M tokens≈ 1,613 pages of text in one go
Reads
Text, Images
Text, Images, Video
Writes
Text
Text
Tool use
Yes - search, memory, code and more
Yes - search, memory, code and more
Served via
OpenRouter, Unbottled AI
OpenRouter, Unbottled AI
Status
Legacy
Current
A typical message: 16K tokens in, 1.5K out. Short replies cost less. Models served via OpenRouter bill the real provider cost plus our markup, so actual charges vary. 1 credit = 0.01 €.