All tasks / Comparisons

Codex vs Kimi Code

Compared only on public benchmark results, across the 1 task where both are listed: Codex is a tier higher in 1 of 1 shared task.

Codex

OpenAI's coding agent for the terminal, IDE, desktop app, web and iOS; the CLI is open source.

Vendor
OpenAI
Kind
Agents
Runs
Cloud
Price
Free tier · from $8/mo
Skill level
Intermediate: some setup or configuration
Open source
Yes
Last verified
18 Oct 2026

Kimi Code

Moonshot AI's coding agent for Kimi models, available as an open-source CLI, desktop app and VS Code extension.

Vendor
Moonshot AI
Kind
Agents
Runs
Cloud
Price
Paid plans
Skill level
Intermediate: some setup or configuration
Open source
Yes
Last verified
19 Oct 2026

Task by task

TaskCodexKimi CodeHigher tier
Coding
Coding agents
A63 on Artificial Analysis Coding Agent Index (v1.5) · CloudB52 on Artificial Analysis Coding Agent Index (v1.5) · CloudCodex

A tier spans a range of scores, and small gaps on a leaderboard are often within its margin of error, so only a different tier counts as ahead. How we rank.

Same benchmark, both results

BenchmarkCodexKimi CodeSnapshot
Artificial Analysis Coding Agent Index (v1.5)
Composite index: equal-weight mean of pass@1 (3 attempts/task) on DeepSWE v1.1, Terminal-Bench 4.0 and SWE-Atlas-QnA, per agent + model, higher is better
635219 Oct 2026