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VOOZH | about |
Parameters
-
Context Length
1M
Modality
Multimodal
Architecture
Dense
License
Proprietary
Release Date
9 Jun 2026
Knowledge Cutoff
-
Attention
Attention Structure
Multi-Head Attention
Attention Heads
-
Key-Value Heads
-
Attention Head Dimension
-
Position Embedding
Absolute Position Embedding
RoPE Theta
-
Sliding Window Attention
-
Sliding Window Size
-
Normalization
-
Activation Function
-
Dimensions
Hidden Dimension Size
-
Number of Layers
-
FFN Intermediate Size (Dense)
-
Multi-Token Prediction Heads
-
Tokenizer
Vocabulary Size
-
Anthropic's advanced frontier model released June 9, 2026. Built on a unified architecture shared with Mythos 5, Fable 5 incorporates advanced safety classifiers for cybersecurity, biology, and chemistry. When these classifiers trigger, requests are automatically and seamlessly routed to Claude Opus 4.8. Features a 1M token context window, a maximum output limit of 128K tokens, and is priced at $10.00 per million input tokens and $50.00 per million output tokens. Note: Access was suspended on June 12, 2026, following a US government export control directive.
Anthropic's Claude Fable 5 generation, released June 9, 2026, shares a unified frontier architecture with Mythos 5, incorporating advanced safety classifiers for cybersecurity, biology, and chemistry, with fallback routing to Claude Opus 4.8.
Rank
#1
| Benchmark | Score | Rank |
|---|---|---|
Web Development WebDev Arena | 1665 | 🥇 1 |
General Text Text Arena | 1510 | 🥇 1 |
Overall Rank
#1 🥇
Coding Rank
#5
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