{"id":1541,"date":"2026-06-16T09:21:38","date_gmt":"2026-06-16T02:21:38","guid":{"rendered":"https:\/\/blog.datacore.vn\/?p=1541"},"modified":"2026-06-16T10:26:22","modified_gmt":"2026-06-16T03:26:22","slug":"best-ai-model-claude-fable-5-ranking","status":"publish","type":"post","link":"https:\/\/blog.datacore.vn\/en\/best-ai-model-claude-fable-5-ranking\/","title":{"rendered":"Claude Fable 5 Is Here: Is It Really the Best AI Model? (Live Ranking, June 2026)"},"content":{"rendered":"

Published:<\/strong> June 14, 2026  |  Last updated:<\/strong> June 14, 2026<\/p>\n

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TL;DR.<\/strong> Anthropic released Claude Fable 5 on June 9, 2026, calling it its most powerful public model ever. On the DataCore AI Leaderboard<\/a>, which tracks 527 models from 58 providers in real time, Fable 5 does take the number 1 spot with a composite score of 63.9, ahead of GPT-5.5 (59.8) and Claude Opus 4.8 (59.7). But \"best\" depends on what you measure: GPT-5.2 leads on math (99), Mercury 2 is the fastest (947 tokens\/sec), and 220 open-weight models are closing the gap. See the live board at airank.datacore.vn<\/a>.<\/p>\n<\/div>\n

Did Claude Fable 5 actually take the number 1 spot?<\/h2>\n

Yes. As of June 14, 2026, Claude Fable 5 (Anthropic) sits at the top of the DataCore AI Leaderboard<\/a> with a composite score of 63.9, built from an Intelligence Index of 64.9 and a coding score of 62. Every new flagship arrives with a claim to be \"the best AI model.\" The difference is that you no longer have to take the launch blog post at face value. The board updates from live benchmark feeds roughly every 10 minutes, so the ranking you see is the ranking as it stands right now, not a screenshot from launch day.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Rank<\/th>\nModel<\/th>\nProvider<\/th>\nComposite<\/th>\nIntelligence<\/th>\nCoding<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nClaude Fable 5<\/td>\nAnthropic<\/td>\n63.9<\/strong><\/td>\n64.9<\/td>\n62<\/td>\n<\/tr>\n
2<\/td>\nGPT-5.5 (xhigh)<\/td>\nOpenAI<\/td>\n59.8<\/td>\n60.2<\/td>\n59.1<\/td>\n<\/tr>\n
3<\/td>\nClaude Opus 4.8<\/td>\nAnthropic<\/td>\n59.7<\/td>\n61.4<\/td>\n56.7<\/td>\n<\/tr>\n
4<\/td>\nGPT-5.2 (xhigh)<\/td>\nOpenAI<\/td>\n57.7<\/td>\n51.3<\/td>\n48.7<\/td>\n<\/tr>\n
6<\/td>\nGemini 3.1 Pro Preview<\/td>\nGoogle<\/td>\n56.6<\/td>\n57.2<\/td>\n55.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>
Source: DataCore AI Leaderboard (airank.datacore.vn), as of June 14, 2026. Composite score = Intelligence 55% + Coding 30% + Math 15%. Benchmark data from Artificial Analysis; catalog and pricing from OpenRouter.<\/figcaption><\/figure>\n

Takeaway:<\/strong> Fable 5 leads, but the gap to the next tier is small (about 4 points to GPT-5.5). This is a three-way frontier race between Anthropic, OpenAI, and Google, not a runaway.<\/p>\n

What is Claude Fable 5, and why the hype?<\/h2>\n

Claude Fable 5 is Anthropic's first Mythos-class model made available to the general public, released on June 9, 2026 alongside the restricted Claude Mythos 5. Anthropic describes it as state-of-the-art across nearly all tested benchmarks, with standout results in software engineering, scientific research, vision, and autonomous task execution, scoring more than 10% higher than Claude Opus 4.8 on some evaluations (source: Anthropic, June 9, 2026). In high-risk domains such as cybersecurity, biology, and chemistry, the model deliberately blocks responses and falls back to Claude Opus 4.8.<\/p>\n

On pricing: Fable 5 is free for Pro, Max, Team, and seat-based Enterprise plans through June 22, 2026. From June 23, 2026 it is priced at 10 USD per 1M input tokens and 50 USD per 1M output tokens (source: Anthropic, June 9, 2026). That free window is exactly why this week is the moment to compare it against the field.<\/p>\n

\"Best\" depends on what you measure: speed, price, and the open-source surge<\/h2>\n

A single number hides the trade-offs that actually decide which model you should use. On the DataCore board right now:<\/p>\n