November 2026 Claude Fable 5.2 Scores 65 on Artificial Analysis, Highest So Far

Anthropic's Claude Fable 5.2 (Max, Default Fallback), released November 9, 2026, scored 65 on the Artificial Analysis Intelligence Index, well above the median of 40 for comparable models, according to Artificial Analysis. The reasoning model accepts text and image input, outputs text, carries a 1M-token context window, and generated 275M tokens during the index evaluation versus a median of 72.8M. Pricing is $8.00 per 1M input tokens (median: $2.00) and $40.00 per 1M output tokens (median: $10.00), with an average cost of $26.54 per task to evaluate the model on the Intelligence Index.

Claude Fable 5.2 Max, Default Fallback Intelligence, Performance & Price Analysis Model summary Performance Claude Fable 5.2 Max, Default Fallback is amongst the leading models in intelligence, but particularly expensive when comparing to other models of similar price. The model supports text and image input, outputs text, and has a 1M tokens context window. Claude Fable 5.2 Max, Default Fallback scores 65 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models median: 40 . When evaluating the Intelligence Index, it generated 275M tokens, which is very verbose in comparison to the median of 72.8M. Pricing for Claude Fable 5.2 Max, Default Fallback is $8.00 per 1M input tokens expensive, median: $2.00 and $40.00 per 1M output tokens expensive, median: $10.00 . On average, it costs $26.54 per task to evaluate Claude Fable 5.2 Max, Default Fallback on the Intelligence Index. | Reasoning | Yes This page shows the reasoning version of this model. A non-reasoning variant may also exist. | |---|---| | Input modality | Supports: text and image | | Output modality | Supports: text | | Context window | 1M ~1500 A4 pages of size 12 Arial font | Metrics are compared against models of the same class: - Non-reasoning models → compared only with other non-reasoning models - Reasoning models → compared across both reasoning and non-reasoning - Open weights models → compared only with other open weights models of the same size class: - Tiny: ≤4B parameters - Small: 4B–40B parameters - Medium: 40B–150B parameters - Large: 150B parameters - Proprietary models → compared across proprietary and open weights models of the same price range, using a blended 3:1 input/output price ratio: - <$0.15 per 1M tokens - $0.15–$1 per 1M tokens - $1 per 1M tokens Time per Task Intelligence Artificial Analysis Intelligence Index https://artificialanalysis.ai/evaluations/artificial-analysis-intelligence-index Artificial Analysis Intelligence Index by Open Weights / Proprietary Intelligence Index vs. Cost per Task Measures the performance of models on specific capabilities and industries Artificial Analysis Finance & Accounting Index https://artificialanalysis.ai/indexes/finance-and-accounting Evaluations Agentic knowledge work, Elo Knowledge 1 - hallucination rate Agentic SaaS workflows Agentic scientific research workflows in a terminal Agentic software engineering in open-source repositories Reasoning & knowledge Professional document reasoning, All-pass Agentic coding & terminal use Physics reasoning Quantitative analysis on spreadsheets & documents Legal agentic work, Hallucination-Gated All-Pass Rate Agentic business operations Agentic real-world work tasks, Elo Agentic interactive 3D experiences, Elo Product and brand videos designed in code, Elo Kubernetes incident root-cause analysis Medical long context reasoning Visual reasoning Rich, varied, well-crafted language Well-structured, scannable, answer-first Truthful, acknowledges uncertainty, non-sycophantic Use of filler and generic language AA-Briefcase v1.1 AA-Briefcase Elo AA-Omniscience v1.1 AA-Omniscience Net Score Token Use Output Tokens per Intelligence Index Task Cost Cost per Intelligence Index Task Cost to Run Artificial Analysis Intelligence Index Pricing: Cache Hit, Input, and Output Context Window Context Window Frequently Asked Questions Common questions about Claude Fable 5.2 Max, Default Fallback Claude Fable 5.2 Max, Default Fallback was released on November 9, 2026. Claude Fable 5.2 Max, Default Fallback was created by Anthropic. Claude Fable 5.2 Max, Default Fallback scores 65 on the Artificial Analysis Intelligence Index, placing it well above average among other models in a similar price tier median: 40 . Claude Fable 5.2 Max, Default Fallback costs $8.00 per 1M input tokens at the higher end, median: $2.00 and $40.00 per 1M output tokens at the higher end, median: $10.00 , based on Anthropic's API. Claude Fable 5.2 Max, Default Fallback costs $8.00 per 1M input tokens and $40.00 per 1M output tokens based on Anthropic's API . For a blended rate 7:2:1 cache hit/input/output ratio , this is $5.74 per 1M tokens. Pricing may vary by provider. Compare provider pricing https://artificialanalysis.ai/models/claude-fable-5-2/providers When evaluated on the Intelligence Index, Claude Fable 5.2 Max, Default Fallback generated 275M output tokens, which is at the higher end compared to other models in a similar price tier median: 72.8M . Yes, Claude Fable 5.2 Max, Default Fallback is a reasoning model. It uses extended thinking or chain-of-thought reasoning to work through complex problems before providing an answer. Claude Fable 5.2 Max, Default Fallback supports text and image input. Claude Fable 5.2 Max, Default Fallback supports text output. Yes, Claude Fable 5.2 Max, Default Fallback supports image input and can analyze, describe, and answer questions about images. Yes, Claude Fable 5.2 Max, Default Fallback is multimodal. It can process text and image input and generate text output. Claude Fable 5.2 Max, Default Fallback has a context window of 1M tokens. This determines how much text and conversation history the model can process in a single request. No, Claude Fable 5.2 Max, Default Fallback is proprietary. The model weights are not publicly available. Claude Fable 5.2 Max, Default Fallback is a proprietary model and Anthropic has not disclosed the model size or parameter count. Claude Fable 5.2 Max, Default Fallback achieves a score of 65 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across knowledge work, coding, science, and general knowledge. Yes, Claude Fable 5.2 Max, Default Fallback is available via API through 1 provider. Compare API providers https://artificialanalysis.ai/models/claude-fable-5-2/providers Claude Fable 5.2 Max, Default Fallback is available through 1 API provider. Compare providers https://artificialanalysis.ai/models/claude-fable-5-2/providers