# classifier.dev (fast) vs Claude Fable 5.2

> Side-by-side benchmark comparison for classifier.dev (fast) and Claude Fable 5.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/classifier-dev-fast-vs-claude-fable-5-2
- Last updated: November 10, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for classifier.dev (fast) and Claude Fable 5.2.

## Summary

- classifier.dev (fast) and Claude Fable 5.2 do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | classifier.dev (fast) | Claude Fable 5.2 |
|----------|----------|----------|
| Creator | classifier.dev | Anthropic |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | null | 1M |
| Independent public score (not head-to-head) | null | 91.41 |
| Benchmarks Covered | 2 | 33 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $8.00 / $40.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- classifier.dev (fast) public-lane score: Coming soon
- Claude Fable 5.2 public-lane score: 90.1 (Estimated · #1/132)

| Benchmark | classifier.dev (fast) | Claude Fable 5.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | Coming soon | 67.60% | Coming soon |
| Terminal-Bench-Science 0.1 | Coming soon | 74.6% | Coming soon |
| AutomationBench | Coming soon | 51.4% | Coming soon |
| OSWorld 2.1 Offline | Coming soon | 89.3% | Coming soon |
| WANDR | Coming soon | 82.1% | Coming soon |
| Remote Labor Index | Coming soon | 41.3% | Coming soon |
| RoboDojo Sim | Coming soon | 64.9% | Coming soon |
| DRACO | Coming soon | 87.7% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- classifier.dev (fast) public-lane score: Coming soon
- Claude Fable 5.2 public-lane score: 86.3 (Estimated · #1/158)

| Benchmark | classifier.dev (fast) | Claude Fable 5.2 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | Coming soon | 93% | Coming soon |
| SWE Multilingual | Coming soon | 96.6% | Coming soon |
| SWE Multimodal | Coming soon | 74.1% | Coming soon |
| DeepSWE | Coming soon | 74.3% | Coming soon |
| FrontierSWE v2 | Coming soon | 69.9% | Coming soon |
| ProgramBench | Coming soon | 85.6% | Coming soon |
| FrontierCode 2.0 | Coming soon | 49.1% | Coming soon |
| CursorBench 4.0 | Coming soon | 60.0% | Coming soon |
| Bug Hunt Bench | Coming soon | 58.0 fixes | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- classifier.dev (fast) public-lane score: Coming soon
- Claude Fable 5.2 public-lane score: 89.9 (Supported · #1/158)

| Benchmark | classifier.dev (fast) | Claude Fable 5.2 | Winner |
|-----------|-----------|-----------|--------|
| JevBench 1.4 | 70.82 | Coming soon | Coming soon |
| JevBench 1.5 | 74.66 | Coming soon | Coming soon |
| ARC-AGI-3 | Coming soon | 65.7% | Coming soon |
| ARC-AGI-3 Provider Adapter | Coming soon | 94.90% | Coming soon |
| STEM Professor Bench | Coming soon | 61.8% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- classifier.dev (fast) public-lane score: Coming soon
- Claude Fable 5.2 public-lane score: 89.3 (Estimated · #1/67)

| Benchmark | classifier.dev (fast) | Claude Fable 5.2 | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | Coming soon | 73.4% | Coming soon |
| Chartography (tools) | Coming soon | 91.6% | Coming soon |
| OfficeQA | Coming soon | 83.4% | Coming soon |
| OfficeQA Pro | Coming soon | 72.9% | Coming soon |
| BenchCAD 2.1 | Coming soon | 75.4% | Coming soon |
| BenchCAD 2.1 (tools) | Coming soon | 83.5% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- classifier.dev (fast) public-lane score: Coming soon
- Claude Fable 5.2 public-lane score: 97.4 (Supported · #1/179)

| Benchmark | classifier.dev (fast) | Claude Fable 5.2 | Winner |
|-----------|-----------|-----------|--------|
| HLE | Coming soon | 74.2% | Coming soon |
| HLE w/o tools | Coming soon | 73.2% | Coming soon |
| PhysicianBench | Coming soon | 64.4% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- classifier.dev (fast) public-lane score: Coming soon
- Claude Fable 5.2 public-lane score: Coming soon

| Benchmark | classifier.dev (fast) | Claude Fable 5.2 | Winner |
|-----------|-----------|-----------|--------|
| GMMLU | Coming soon | 96.0% | Coming soon |
| MILU | Coming soon | 94.1% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- classifier.dev (fast) public-lane score: Coming soon
- Claude Fable 5.2 public-lane score: 93.8 (Unranked · 2 rankable rows)

| Benchmark | classifier.dev (fast) | Claude Fable 5.2 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 95.088% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 100.000% | Coming soon |

## FAQ

### Can I compare classifier.dev (fast) and Claude Fable 5.2 on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [classifier.dev (fast) vs Claude Fable 5.1](/compare/classifier-dev-fast-vs-claude-fable-5-1)
- [Claude Fable 5.2 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-fable-5-2)
- [classifier.dev (fast) vs Claude Fable 5](/compare/classifier-dev-fast-vs-claude-fable)
- [Claude Fable 5.2 vs Claude Fable 5](/compare/claude-fable-vs-claude-fable-5-2)

## Explore More

- [classifier.dev (fast) profile](/models/classifier-dev-fast)
- [Claude Fable 5.2 profile](/models/claude-fable-5-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)