grok-4.3 vs kimi-k2.6

Pricing, Performance & Features Comparison

grok-4.3

Authorxai

Context Length1M

Reasoning

Providers1

ReleasedApr 2026

Knowledge Cutoff–

License–

xAI’s value flagship with a 1M-token context window and unified reasoning effort control; the retirement redirect target for the grok-3 and grok-4 generations.

Input$1.3

Output$2.5

Latency (p50)5.9s

Output Limit–

Function Calling

JSON Mode

InputText, Image

OutputText

xai

in$1.3out$2.5cache$0.2–

Latency (24h)

Success Rate (24h)

kimi-k2.6

Authormoonshot

Context Length262K

Reasoning

Providers1

ReleasedApr 2026

Knowledge CutoffApr 2025

LicenseMIT License

Mixture-of-Experts model with 1T total parameters and 32B activated per token. Features MLA attention, MoonViT vision encoder, and agent swarm orchestration.

Input$0.95

Output$4

Latency (p50)6.5s

Output Limit66K

Function Calling

JSON Mode

InputText, Image, Video

OutputText

moonshot

in$0.95out$4cache$0.16write$0.95