Claude Fable 5.2: Release Intelligence, Performance & Price
Available providers
Model summary
Verbosity
The Claude Fable 5.2 release offers 5 models, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across the 5 models.
- For intelligence, the top model of Claude Fable 5.2 is Claude Fable 5.2 (Max, Default Fallback) at 65.
- For pricing, Claude Fable 5.2 (Low, Default Fallback) at $3.10 offers the lowest cost per task. Prices vary up to 8.6x across models.
| 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
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Task
Cost
Cost per Intelligence Index Task
Speed & Latency
Time per Intelligence Index Task
Capability Scores
Capability Indexes
Incorporates 5 evaluations: AA-Briefcase v1.1, AA-Omniscience v1.1, HLE-Diamond, AutomationBench-AA, GDP.pdf · Higher is better
Incorporates 4 evaluations: AutomationBench-AA, AA-Briefcase v1.1, AA-Omniscience v1.1, GDP.pdf · Higher is better
Incorporates 5 evaluations: AA-Omniscience v1.1, AA-Briefcase v1.1, HLE-Diamond, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 5 evaluations: AA-Omniscience v1.1, AA-Briefcase v1.1, MLCR-AA, AutomationBench-AA, HLE-Diamond · Higher is better
Incorporates 7 evaluations: AA-Omniscience v1.1, CritPt v2 (Hard Subset), Terminal-Bench-Science 0.1, HLE-Diamond, Terminal-Bench 4.0, FrontierCode 2.0, AA-Briefcase v1.1 · Higher is better
Incorporates 4 evaluations: AA-Omniscience v1.1, AA-Briefcase v1.1, HLE-Diamond, GDP.pdf · Higher is better
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
Legal agentic work, Hallucination-Gated All-Pass Rate
Agentic real-world work tasks, Elo
Agentic interactive 3D experiences, Elo
More from Anthropic
Further details
Weights | Provider Benchmarks | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Claude Fable 5.2 (Max, Default Fallback) |  Anthropic | 65 | - | 1M | $5.74 | - | - | Not available | | |
| Claude Fable 5.2 (Xhigh, Default Fallback) | Anthropic | 62 | - | 1M | $5.74 | - | - | Not available | | |
| Claude Fable 5.2 (High, Default Fallback) | Anthropic | 62 | - | 1M | $5.74 | - | - | Not available | | |
| Claude Fable 5.2 (Medium, Default Fallback) | Anthropic | 56 | - | 1M | $5.74 | - | - | Not available | | |
| Claude Fable 5.2 (Low, Default Fallback) | Anthropic | 54 | - | 1M | $5.74 | - | - | Not available | |