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GrammarlyKimi
AttributeGrammarly

Grammarly

Kimi

Moonshot AI

SegmentWritingWriting
VersionDocs eraK3
Entry costFree tier, Pro $12/moFree consumer tier; per-token API (kimi-k3, k2.7-code, k2.6). K2.5 and moonshot-v1 sunset Aug 31, 2026.
Pricing tiersFree free · Pro $12 · Enterprise $33
Model stackUndisclosed frontier LLM · In-house NLP modelsKimi K3 · Kimi K2.7 Code · Kimi K2.6
Context windowNot published1M tokens
Public API
Routes models
Changes / 30d05
OriginGlobalChina
CapabilitiesGrammar and tone, Generative rewriting, Plagiarism detection, AI detection, Docs editorNative multimodal (visual + text), 1M-token context, Agentic tool use, Thinking / non-thinking modes, Dedicated coding models (k2.7-code, high-speed), Open weights