Gemini 4 Carbon Tops Artificial Analysis Index and Hits Pareto Frontier on LMArena

On October 29, Artificial Analysis published the first batch of evaluation results for Google Gemini 4 Carbon: the model ranked first on the Intelligence Index v5 with a score of 59, and scored 59 on the Coding Agent Index, second only to the Claude Opus family. An official chart compiled by @faraz0x shows Gemini 4 Carbon leading Claude Opus 5.5 (58) by just 1 point. On Reddit, @kairosdev posted that the model ranks first on the AA V5 intelligence index, with a screenshot attached but no further details. According to a repost by @mohansolo, Google quickly followed up with the release of Gemini 4 Carbon, which sits alongside Claude Opus 4.5 at the top of AA's new index and surpasses GPT-6.1; the API has not yet been opened, and no further details were disclosed from internal sources.

Confirmed

• Artificial Analysis published the first Gemini 4 Carbon evaluations: 59 on Intelligence Index v5, ranked first
• Coding Agent Index of 59, second only to the Claude Opus family
• Leads runner-up Claude Opus 5.5 (58) by just 1 point

Unconfirmed

• The Reddit post (@kairosdev) is screenshot-based and states the news is unverified through official channels
• Whether the API is open is unclear: the repost says it is not yet available; waiting for official or leaderboard-page confirmation is advised

Why it matters

• Gemini 4 Carbon topping the AA intelligence index by a razor-thin 1-point margin shows how close Google and Anthropic flagship models have become — the race among top models has entered a photo-finish stage
• The unopened API means third-party evaluations may be based on early or restricted access; real-world availability awaits official confirmation

2026-10-29 ~ 2026-10-29 · 37 related posts

• Gemini 4 Carbon benchmark chart shared amid Google's new release — osanseviero · 2026-10-29
• Hugging Face researcher teases upcoming rollout of Gemini 4 Carbon — osanseviero · 2026-10-29
• Unverified Gemini 4 Carbon eval sheet claims wins on 14 of 18 benchmarks vs Claude and GPT — Angaisb_ · 2026-10-29
• Gemini 4 Carbon tops AA Index v5, beats Opus 5.5 and GPT-6 Astra on most benchmarks — Yuchenj_UW · 2026-10-29
• 'Gemini 4 Carbon' Sweep X Claiming to Beat 'Opus 5.5' — Likely an AI-Circle Prank — YashasGunderia · 2026-10-29
• Gemini 4 Carbon tops Artificial Analysis index with 59, beating Claude and GPT-6 — Independent-Wind4462 · 2026-10-29
• Unconfirmed: 'Gemini 4 Carbon' claimed SOTA on AA index, Google hype builds — agihippo · 2026-10-29
• Google reportedly launches Gemini 4 Carbon, claimed No.1 on Artificial Analysis — WonderFactory · 2026-10-29
• Gemini 4 Carbon tops Artificial Analysis V5 (duplicate screenshot) — kairosdev · 2026-10-29
• [source] Gemini 4 Carbon tops Artificial Analysis Intelligence Index at 59, second only to Opus 5.5 on coding agents — ArtificialAnlys · 2026-10-29
• [source] Gemini 4 Carbon costs $7.76 per task, 23% less than Claude Opus 5.5 at same intelligence — ArtificialAnlys · 2026-10-29
• Gemini 4 Carbon scores 59 on Coding Agent Index, second only to Claude Opus 5.5 — ArtificialAnlys · 2026-10-29
• Gemini 4 Carbon gains 126 Elo on AA-Briefcase but trails Grok 4.7 and Kimi K3.1 Pro — ArtificialAnlys · 2026-10-29
• Gemini 4 Carbon tops AA-Omniscience at 54 with 58% accuracy and 11% hallucination rate — ArtificialAnlys · 2026-10-29
• Gemini 4 Carbon tops AA-Omniscience at 54, but 11% hallucination rate trails Argon's 4% — ArtificialAnlys · 2026-10-29
• Gemini 4 Carbon (High) tops AA Intelligence Index at 59, but costs $7.76 per task — ArtificialAnlys · 2026-10-29
• [source] Gemini 4 Carbon hits Pareto frontier on Agent Arena, 72% cheaper than Claude Opus 5.5 — arena · 2026-10-29
• Gemini 4 Carbon (High) hits #2 in Agent Arena at $1.80/task, 72% cheaper than Claude Opus 5.5 — arena · 2026-10-29
• Unverified 'Gemini 4 Carbon' SOTA claims circulate alongside Google Docs ranking jab — gnukeith · 2026-10-29
• Gemini 4 Carbon tops Artificial Analysis index; no public API yet — vitaliychiley · 2026-10-29
• 'Google is back': Reddit reacts as Gemini 4 Carbon takes #1 on Artificial Analysis — kknd1991 · 2026-10-29
• Gemini 4 Carbon beats Opus 5.5 on smarts and cost — but benchmarked via Antigravity CLI — Yuchenj_UW · 2026-10-29
• Community-made 'Gemini 4 Carbon' benchmark table sweeps GPT-6 and Claude across 14 evals — zacharynado · 2026-10-29
• Gemini 4 rumored element-based naming sparks buzz as Carbon benchmark chart circulates — scaling01 · 2026-10-29
• New king on Artificial Analysis index: Cobalt 4 (high) takes #1, no public API yet — inductionheads · 2026-10-29
• Leaked Gemini 4 Carbon evals top GPT-6 Astra and Claude Opus 5.5 across most benchmarks — zacharynado · 2026-10-29
• Gemini 4 Carbon tops Artificial Analysis v5.0 leaderboard — glmn_official · 2026-10-29

10 near-duplicate retellings: arrakis_ai · kairosdev · infwinston · faraz0x · Marimo188 · YashasGunderia · mark_k · altryne · kimmonismus · arena