Moonshot AI

Kimi K2.7 · Fast

Fast mode — top speed, minimal thinking.

Context256,000 tokens

PricingFlat plan (no per-token bill)

Tasks tested47

Avg scorecurrently unranked

Medals🥇0 🥈0 🥉0

Release2026-06

Official sitekimi.com ↗

Official vendor source

Kimi K2.7 · Fast is built by Moonshot AI — see the vendor's own product page, pricing, and docs at kimi.com.

Visit kimi.com →

Reference benchmarks for Kimi K2.7 · Fast

These are external benchmarks I pulled from the source comparison guides on agentos.guide — SWE-bench Verified, DRACO, Kilo plan rubric, build-time measurements, vendor-reported coding scores. They are not goldiebench medal scores (those come only from same-prompt one-shot creative coding tasks in the matrix). I surface them here so the spec sheet for Kimi K2.7 · Fast is honest about what's measured.

Build time · solar system (one shot)

65s

source: /kimi-modes-head-to-head

Build time · playable game (one shot)

188s

source: /kimi-modes-head-to-head

Build time · spiral galaxy (one shot)

53s

source: /kimi-modes-head-to-head

Avg build time (3 tasks)

102s

source: /kimi-modes-head-to-head

What is Kimi K2.7 · Fast?

Kimi K2.7 · Fast is the Moonshot AI frontier model with a 256,000 tokens context window, released 2026-06. Tagline: Fast mode — top speed, minimal thinking.. Official source: kimi.com.

Pricing detail. Same flat-rate plan as standard Kimi K2.7 — Fast mode is a runtime toggle, not a separate model. Vendor: Moonshot AI (moonshot.ai).

How I use it inside the Agent OS. Wired into Agent OS as the snappy default — first-pass attempts, agent chatter, live demos.

What I built with Kimi K2.7 · Fast

Every model on Goldie Bench gets the same fixed prompt set — one shot, single HTML file out — and I score the result 0–10 inside the Agent Operating System. Here's what Kimi K2.7 · Fast shipped on the bench: 47 one-shot demos across 256,000 tokens of context. Of those, 0 are scored against the field with my honest 0–10 from the source guides at agentos.guide.

Strengths

Lowest latency of the three Kimi modes for short builds
Same 256K context as Quality mode
Best when you need agent-loop responsiveness over polish

Trade-offs

Skips deeper reasoning passes — bronze-tier on tasks needing planning
Julian explicitly does not assign scores to Kimi modes on the standalone bench

Best for

Snappy iteration inside agent loops
Short prompts where Quality mode would over-think
Live demos where latency matters more than the last 5% of polish

Every demo by Kimi K2.7 · Fast

47 live demos, sorted by category. Click any tile to play the actual one-shot result. Verdicts and 0–10 scores are pulled from the source guides where I posted them publicly.

Kimi K2.7 · Fast

Reference benchmarks for Kimi K2.7 · Fast

What is Kimi K2.7 · Fast?

What I built with Kimi K2.7 · Fast

Strengths

Trade-offs

Best for

Every demo by Kimi K2.7 · Fast

Compare Kimi K2.7 · Fast against every other model

Quick pill index

Kimi K2.7 · Fast — frequently asked

Run this stack yourself.