A
Anthropic
Claude Fable 5
- Model type
- Proprietary
- Evidence state
- Supported evidence
- Published context
- 1,000,000
Claude Fable 5 vs
Claude Opus 4.8
Read the published evidence, route context, and missing facts before making a local decision. This page does not name a universal winner.
Models in this comparison
Provider identity and evidence state stay balanced across the pair.
A
Anthropic
Claude Opus 4.8
- Model type
- Proprietary
- Evidence state
- Supported evidence
- Published context
- 1,000,000
Key implications
Broad shared-metric coverage. Each finding is tied to a published metric, price, context, or modality fact.
- Across compatible supported BenchLM categories, Claude Fable 5 has higher scores in Agentic, Coding, and Overall; Claude Opus 4.8 has a higher score in Knowledge.
- Input API price: Claude Opus 4.8 has the lower verified rate ($5 / 1M tokens vs $10 / 1M tokens).
- Output API price: Claude Opus 4.8 has the lower verified rate ($25 / 1M tokens vs $50 / 1M tokens).
Shared metric view
The radar is a per-axis relative view; exact values and units remain available in its adjacent table.
- Claude Fable 5: solid line
- Claude Opus 4.8: dashed line
| Metric | Claude Fable 5 | Claude Opus 4.8 | Unit |
|---|---|---|---|
| Agentic | 75.54 | 61.78 | score |
| Coding | 81.41 | 71.98 | score |
| Knowledge | 67.4 | 86.8 | score |
| Overall | 83.15 | 76.6 | score |
Source metrics
Friendly metric names and published units stay visible. Missing measurements remain unavailable rather than becoming a score.
| Metric | Unit | Claude Fable 5 | Claude Opus 4.8 |
|---|---|---|---|
| Agentic | score | 75.54 | 61.78 |
| Coding | score | 81.41 | 71.98 |
| Knowledge | score | 67.4 | 86.8 |
| Math | score | Unavailable | 66.8 |
| MultimodalGrounded | score | 60.8 | 85.4 |
| Reasoning | score | Unavailable | 68.3 |
| Overall | score | 83.15 | 76.6 |
Agentic
- Unit
- score
- Claude Fable 5
- 75.54
- Claude Opus 4.8
- 61.78
Coding
- Unit
- score
- Claude Fable 5
- 81.41
- Claude Opus 4.8
- 71.98
Knowledge
- Unit
- score
- Claude Fable 5
- 67.4
- Claude Opus 4.8
- 86.8
Math
- Unit
- score
- Claude Fable 5
- Unavailable
- Claude Opus 4.8
- 66.8
MultimodalGrounded
- Unit
- score
- Claude Fable 5
- 60.8
- Claude Opus 4.8
- 85.4
Reasoning
- Unit
- score
- Claude Fable 5
- Unavailable
- Claude Opus 4.8
- 68.3
Overall
- Unit
- score
- Claude Fable 5
- 83.15
- Claude Opus 4.8
- 76.6
Pricing and context
Verification is shown beside each selected route. Missing facts remain Not verified.
| Field | Unit | Claude Fable 5 | Claude Opus 4.8 |
|---|---|---|---|
| Input API price | USD / 1M tokens | $10 | $5 |
| Cached input API price | USD / 1M tokens | $1 | Not verified |
| Output API price | USD / 1M tokens | $50 | $25 |
| Route context | tokens | 1,000,000 | 1,000,000 |
| Input modalities | published list | Not verified | Not verified |
| Output modalities | published list | Not verified | Not verified |
Input API price
- Unit
- USD / 1M tokens
- Claude Fable 5
- $10
- Claude Opus 4.8
- $5
Cached input API price
- Unit
- USD / 1M tokens
- Claude Fable 5
- $1
- Claude Opus 4.8
- Not verified
Output API price
- Unit
- USD / 1M tokens
- Claude Fable 5
- $50
- Claude Opus 4.8
- $25
Route context
- Unit
- tokens
- Claude Fable 5
- 1,000,000
- Claude Opus 4.8
- 1,000,000
Input modalities
- Unit
- published list
- Claude Fable 5
- Not verified
- Claude Opus 4.8
- Not verified
Output modalities
- Unit
- published list
- Claude Fable 5
- Not verified
- Claude Opus 4.8
- Not verified
Evidence provenance
Source records, route identity, timestamps, and methodology are consolidated here without declaring either model a winner.
- Publication time
- Aug 30, 2026, 2:15 AM UTC
- Freshness
- Stale — Published weekly benchmark evidence has not refreshed within 8 days.
- Methodology
- benchlm: benchlm_raw_composite
- Model records
- Claude Fable 5 — source benchlm · artifact models · model claude-fable-5
- Claude Opus 4.8 — source benchlm · artifact models · model claude-opus-4-8
- Selected price routes
- Claude Fable 5 — route benchlm:claude-fable-5 · source benchlm · provider anthropic
- Claude Opus 4.8 — route benchlm:claude-opus-4-8 · source benchlm · provider anthropic
Keep comparing
Other reviewed matchups from the same published revision, ready to open without changing this result’s evidence.
Switch model pair
Choose from this result’s current and reviewed related models. Switching opens a reviewed comparison; it does not change this result’s evidence.
Step 1
Start with popular models, or search the full selectable directory.
Step 2
Start with popular models, or search the full selectable directory.