All models
Head to head
Kimi K3 vs Grok 4.20
Price, context, inputs and filters. No benchmarks theatre.
Grok 4.20 costs 1.1× less per message.
Grok 4.20 holds 1.9× more context.
Made by
Moonshot AI
X-AI
Content tier
Open
Open
Intelligence
Brilliant
Brilliant
Estimated price per message
~3.52 credits≈ 28 messages for $1
~3.09 credits≈ 32 messages for $1
Context window
1M tokens≈ 1,613 pages of text in one go
2M tokens≈ 3,077 pages of text in one go
Reads
Text, Images, Video
Text, Images
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
Current
Legacy
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.