Anthropic
Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback)
Claude Fable 5 (Adaptive Reasoning, Max Effort, Opus 4.8 Fallback) is an Anthropic Claude Opus profile, representing the high-capability end of the Claude lineup for difficult coding, agentic, research, and computer-use tasks. This page compares the exact benchmarked variant against other Claude and non-Claude models on capability, runtime, and price.
Introducing Claude OpusModel Snapshot
ReleaseJun 9, 2026
Overall
Rank #1 across 526
59.9
Coding
Rank #1 across 436
62.0
Blended Price
Rank #346 across 357
$20.00/M
Strength Profile
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Benchmark Percentiles
Higher bars mean stronger relative placement.
Model Details
Runtime
Max Outputn/a
Streaming speed is not measured for this model yet.
Pricing
Blended$20.00/M
Input$10.00/M
Output$50.00/M
Metadata
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 59.9 | #1 |
| Artificial Analysis Coding Index | coding | 62.0 | #1 |
| GPQA | reasoning | 92.6% | #5 |
| Humanity's Last Exam | reasoning | 53.3% | #1 |
| SciCode |