Head to head

Grok vs Kimi

Grok (xAI) and Kimi (Moonshot AI) both sit in Writing. Kimi shipped more tracked changes in the last 30 days (10 vs 0). Every value below comes from the latest crawl of the vendors' own pages.

AttributeGrok

xAI

Kimi

Moonshot AI

SegmentWritingWriting
VersionGrok 4.6Kimi K3
Entry costFree Playground available; pay-as-you-go API pricing with Grok 4.6 starting at $2.00/1M input and $6.00/1M output tokens.API access with pay-as-you-go pricing based on token consumption. File APIs are currently free.
Pricing tiersConsole / Playground freePay-as-you-go / Pay-per-token free
Model stackgrok-4.5 · grok-4.6 · grok-imagine-image · grok-imagine-image-2.0 · grok-imagine-image-quality · grok-imagine-video · grok-imagine-video-1.5Kimi K2.6 · Kimi K2.7 Code · Kimi K3 · kimi-k2.5 · kimi-k2.7-code-highspeed
Context window5000001000000
Public API
Routes models
Changes / 30d010
OriginGlobalChina
CapabilitiesReal-time X search, Think and Big Brain modes, Voice mode, Image generation, API access, text generation, agentic coding, voice agentNative multimodal (visual + text), 1M-token context, Agentic tool use, Thinking / non-thinking modes, Dedicated coding models (k2.7-code, high-speed), Open weights, 1M token context, Multimodal input

Grok

Grok pairs xAI's in-house models with live access to the X firehose, sold standalone and bundled into X Premium tiers.

Full Grok record →

Kimi

Moonshot AI's assistant, known for very long context windows and the open-weight K2 agentic model.

Full Kimi record →
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