---
type: "post"
id: "artificial-analysis-has-released-version-2-0-of-8a8c4d"
slug: "artificial-analysis-has-released-version-2-0-of-8a8c4d"
title: "Artificial Analysis has released version 2.0 of its Coding Agent Index , with Claude Opus 5.5 running in Claude Code leading at 61.7."
description: "Artificial Analysis has released Coding Agent Index v2.0, a composite benchmark for coding-agent configurations."
retrieval_nugget: "Artificial Analysis has released Coding Agent Index v2.0, a composite benchmark for coding-agent configurations."
published_at: "2026-10-23"
updated_at: "2026-10-23"
record_date: "2026-10-23"
date_kind: "published_at"
topics: ["claude","claude-code"]
entities: ["Artificial Analysis","Coding Agent Index","Claude Opus 5.5","Claude Code","FrontierCode v1.1","Terminal-Bench 4.0","SWE-Atlas-QnA-AA","Scale AI"]
related_patterns: ["ai-engineering-evaluations-are-splitting-into-task-specific"]
novelty_label: "new_fact"
what_changed: "Artificial Analysis has expanded its FrontierCode 1.1 leaderboard into Coding Agent Index v2.0, combining three benchmarks; Claude Opus 5.5 in Claude Code leads with a score of 61.7."
prior_refs: ["memory:1f800e00-04be-897e-af57-fe07de272b5a"]
source_url: "https://artificialanalysis.ai/agents/coding-agents"
source_urls: ["https://artificialanalysis.ai/agents/coding-agents"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "post:artificial-analysis-has-released-version-2-0-of-8a8c4d"
status: "published"
visuals: []
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
routes: {"html":"https://newruntime.com/posts/artificial-analysis-has-released-version-2-0-of-8a8c4d/","markdown":"https://newruntime.com/posts/artificial-analysis-has-released-version-2-0-of-8a8c4d.md","json":"https://newruntime.com/posts/artificial-analysis-has-released-version-2-0-of-8a8c4d.json"}
---

# Artificial Analysis has released version 2.0 of its Coding Agent Index , with Claude Opus 5.5 running in Claude Code leading at 61.7.

## Retrieval answer

Artificial Analysis has released Coding Agent Index v2.0, a composite benchmark for coding-agent configurations.

Artificial Analysis has released Coding Agent Index v2.0, a composite benchmark for coding-agent configurations. The index combines FrontierCode v1.1, Terminal-Bench 4.0, and SWE-Atlas-QnA-AA with equal weight. The source lists 100 FrontierCode tasks, 66 Terminal-Bench tasks, and 124 technical Q&A tasks in SWE-Atlas-QnA-AA.

Scores are the mean of three attempts per task. The published release summary identifies Claude Opus 5.5 running in Claude Code as the leading configuration, with a score of 61.7. The index page also presents per-benchmark results alongside API cost per task, token use, active agent wall time, safety-refusal rates, and reward-hacking results.

Artificial Analysis describes its cost measure as pay-per-token API cost, including cache pricing where applicable. It does not represent consumer subscription prices or full deployment cost; infrastructure, engineering, and supervision are excluded. Active runtime also excludes environment startup, verifier or judge time, and other harness overhead.

The index is a comparative measurement under its selected tasks, agent settings, and scoring rules. The source does not establish that the top-ranked configuration will perform best, cost least, or be most reliable in a particular production repository or workflow.

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

## Continue in the graph

Next records for an agent, linked to their Markdown twins. Replace `.md` with `.json` for structured fields, including `next_reads`.

- topic hub: [Claude](https://newruntime.com/topics/claude.md): Explore the claude topic hub.
- topic hub: [Claude Code](https://newruntime.com/topics/claude-code.md): Explore the claude-code topic hub.
- collection: [Field Notes](https://newruntime.com/posts.json): Open the latest editorial analysis.
- collection: [Source Ledger](https://newruntime.com/source-ledger.json): Inspect the public source evidence graph.
- whole graph: [discovery graph](https://newruntime.com/discovery-graph.json) (typed nodes and edges) and [site index](https://newruntime.com/site-index.md)