Operational Checked 1d ago

Mode VC Chart: Best LLM for Coding: The Arena Coding Leaderboard

com.modevc/chart-best-llm-for-coding

Official site ↗

claude-opus-4-6-high leads Arena coding at 1535. Anthropic has held #1 for 280 days, but Z.ai.

Latest observation

Status overview

Current statusOperationalNetwork, MCP handshake, and supported capability checks succeeded.
Latency168 msEnd-to-end protocol check
Protocol2026-07-28Modern flow
Tools discovered3Safe tools/list discovery only
Reliability

Uptime and latency

Auth-required and unknown checks are excluded.
Last 24 hours—Collecting comparable data
Last 7 days100%1 comparable checks · 168 ms average
Last 30 days100%2 comparable checks · 254 ms average
OperationalDegradedDownExcludedNewest on the left
Transparent checks

What was tested

Network reachability

HTTPS endpoint and response timing.

Passed
MCP handshake

Modern discovery or legacy initialization.

Passed
Tools/list

Capability discovery without invoking any tool.

Passed
Events

Recent incidents

No incidents recorded

An incident opens only after consecutive confirmed failures.

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