AI
Claude Fable 5.1 is savageAI Search3 Sept 2026
Creator preferred its Blender X-wing over Fable 5.1 and notes Fable silently falls back to Opus 5 on biology prompts.
Anthropic's Opus 5 large language model, ranked near the top of the Artificial Analysis Intelligence Index.
Updated EU status checked Last shown
Claude Opus 5 at a glance
- What is Claude Opus 5?
- Claude Opus 5 is a model from Anthropic. Anthropic's Opus 5 large language model, ranked near the top of the Artificial Analysis Intelligence Index.
- Who makes Claude Opus 5?
- Claude Opus 5 is made by Anthropic.
- Does Claude Opus 5 work in the EU?
- Unverified. No explicit evidence found. The provided pages are from Artificial Analysis (a benchmarking site), whose terms only mention US export controls and do not address Anthropic's EU availability. Last verified 14 Nov 2026.
- How much does Claude Opus 5 cost?
- Pricing unknown. Licence: Proprietary.
- Where was Claude Opus 5 shown?
- In 8 creator videos by AI Search, Matthew Berman, Matt Wolfe. Most recently by AI Search on 3 Sept 2026, at 8:30 in “Claude Fable 5.1 is savage”.
Sources: the vendor's own pages (linked above) and creator videos at the linked timestamps. EU status is information, not legal advice; see how we check.
About
Claude Opus 5 is a large language model from Anthropic, part of the Claude Opus line. The material provided here comes from the Artificial Analysis benchmarking site, which tracks it in its independent intelligence, cost and time-per-task comparisons, so the details below are limited to what is known from that context and from creator commentary.
According to YouTube creator commentary, Opus 5 led the Artificial Analysis Intelligence Index by one or two points over GPT-5.6 at the time of that coverage. Another creator compared its Blender output (an X-wing) favourably against Claude Fable 5.1, and noted that Fable 5.1 silently falls back to Opus 5 on biology prompts. Later Artificial Analysis listings show newer Anthropic models (Opus 5.5, Fable 5.2) ranking above it.
Specific details such as context window, pricing, release date and supported modalities were not in the provided material and are left unspecified. Check Anthropic's official documentation for those.
Key features
- Strong results on the Artificial Analysis Intelligence Index per creator reports
- Fallback model for Claude Fable 5.1 on certain restricted topics such as biology, per a creator
- Evaluated by Artificial Analysis on intelligence, cost per task and time per task
8 moments
As seen on YouTube
Watch the moment: the exact second top creators show it. Videos load only when you press play, via youtube-nocookie.com.
The Most Important Chart In AI Right Now
Top model on the Artificial Analysis intelligence index, only one or two points ahead of GPT-5.6.
Anyone Can Make Amazing Games Now (Easy)
Described as the most impressive recent model for creating good-looking games. It was used for the initial game build.
AI News: An INSANE Week… Here’s What Matters
Benchmarks roughly match Fable 5 at lower cost, but community sentiment is mostly negative versus Opus 4.8. It is notably strong at generating good-looking 3JS games; the creator tested an Elden Ring-style game, a Mega Bonk clone and Beauty Bench, and still prefers GPT 5.6.
MA
GPT-5.6 just made itself better...Matthew Berman31 Jul 2026
Claude Opus 5 low scores slightly below Luna and GLM 5.2 but costs about 40 cents per task.
Claude Opus 5 is a freak
Anthropic's latest frontier model, tested on Windows 11 clone, image-to-3D, video creation, Blender, and music tasks. Strong at front end and 3D design, but very slow and expensive, with a 1M context window and mixed benchmark results; guardrails fall back to Opus 4.8.
AI
Claude Opus 5, GPT 6 hack, Flux 3, new Gemini, quantum breakthrough, new Qwen: AI NEWSAI Search26 Jul 2026
Anthropic's new top model, ranked first on Artificial Analysis and scoring over 30% on ARC-AGI-3, but behind GPT-5.6 Soul on some coding benchmarks and costly. Guardrails are lighter than Fable 5, falling back to Opus 4.8 on flagged requests.
MA
What did Anthropic do?! (Opus 5)Matthew Berman24 Jul 2026
New Anthropic Opus model that beats Fable 5 on most benchmarks (Terminal/Frontier coding, GDPval, OS World, Automation Bench) and scores about 30% on ARC-AGI-3. It is priced at $5/$25 per million tokens, the same as Opus 4.8 and half of Fable. It is better and cheaper per task, with reduced cyber capability compared to Mythos 5, and has automatic API fallback to Opus 4.8 for safety-flagged requests.
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