Data points: 150
Model compare
The readout for Claude Fable 5 and Claude Opus 4.6, before the detailed comparison sheet.
Weighted outcome: Claude Fable 5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
Claude Fable 5
Claude Fable 5 has the higher weighted result; Model A / B score 74.7 to 25.3.
Evidence depth
150 data points
Includes 28 benchmark rows, 6 audit samples, and 7 provider examples.
Selection signal
Start with Claude Fable 5
The charts below split 41 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
This report only uses LMSpeed data for Claude Fable 5 and Claude Opus 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Fable 5 | Claude Opus 4.6 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 74.7 pts | 25.3 pts |
| Benchmark category leads | 5 categories | 1 categories |
| Operational advantages | Average speed, First-token latency | Cheapest input price, Free providers, Provider coverage |
| Context window | 1M tokens | 1M tokens |
| Max output | 128K tokens | 128K tokens |
| Modalities | Input TextImageFile Output Text | Input |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | Claude Fable 5 | Claude Opus 4.6 |
|---|---|---|
| Developer | Anthropic | Anthropic |
| Released | Jun 2026 | Feb 2026 |
| Parameters | No data | No data |
| Tokenizer | Claude | Claude |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-fable-5 | anthropic/claude-opus-4.6 |
| References | No data | No data |
This report only uses LMSpeed data for Claude Fable 5 and Claude Opus 4.6: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
Claude Fable 5
Claude Fable 5 is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Instruction following) and operational dimensions (Average speed, First-token latency).
Claude Opus 4.6
Claude Opus 4.6 is stronger in benchmark categories (Multimodal) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
Claude Fable 5
58.7
Avg. score
Claude Opus 4.6
53.4
Claude Fable 5 leads by 11.3
Claude Fable 5 leads by 8.6
Claude Fable 5 leads by 7.1
Claude Fable 5 leads by 6.5
Claude Opus 4.6
Claude Opus 4.6
Claude Opus 4.6 leads by 3.6
Claude Fable 5 leads by 5.8
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Claude Fable 5
winner80.0
Rank #2/84 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
68.0
Rank #17/84 · confidence 3 · eval date 2026-02-01
Claude Fable 5
$10.00/M
Rank #153/162 · confidence 4
Claude Opus 4.6
winner$5.00/M
Rank #146/162 · confidence 4
Claude Fable 5
$20.00/M
Rank #154/162 · confidence 4
Claude Opus 4.6
winner$10.00/M
Rank #147/162 · confidence 4
Claude Fable 5
$50.00/M
Rank #154/162 · confidence 4
Claude Opus 4.6
winner$25.00/M
Rank #147/162 · confidence 4
Claude Fable 5
winner53.3%
Rank #4/187 · confidence 4
Claude Opus 4.6
18.6%
Rank #62/187 · confidence 4
Claude Fable 5
winner28.6
Rank #5/73 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
2.8
Rank #43/73 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner92.6%
Rank #8/188 · confidence 4
Claude Opus 4.6
84.0%
Rank #53/188 · confidence 4
Claude Fable 5
winner70.0
Rank #19/89 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
58.3
Rank #62/89 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner60.2
Rank #1/96 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
45.7
Rank #37/96 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner83.1
Rank #1/65 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
63.7
Rank #8/65 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner53.5
Rank #1/8 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
26.9
Rank #7/8 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner60.2%
Rank #1/185 · confidence 4
Claude Opus 4.6
45.7%
Rank #33/185 · confidence 4
Claude Fable 5
winner80.0
Rank #1/37 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
53.4
Rank #30/37 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner95.0
Rank #1/43 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
80.8
Rank #7/43 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner53.3
Rank #1/96 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
18.6
Rank #56/96 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner61.4
Rank #1/90 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
45.2
Rank #15/90 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner40.2
Rank #1/29 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
3.5
Rank #23/29 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner59.9
Rank #1/99 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
37.8
Rank #39/99 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner92.6
Rank #7/96 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
84.0
Rank #52/96 · confidence 3 · eval date 2026-02-01
Claude Fable 5
69.2
Rank #26/55 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
winner82.6
Rank #8/55 · confidence 3 · eval date 2026-02-01
Claude Fable 5
54.9
Rank #62/90 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
winner76.0
Rank #44/90 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner1332.0
Rank #3/66 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
1325.0
Rank #4/66 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner64.0
Rank #22/35 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
62.1
Rank #23/35 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner63.5
Rank #49/86 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
44.6
Rank #61/86 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner85.0
Rank #1/21 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
72.7
Rank #10/21 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner98.5
Rank #2/84 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
84.8
Rank #44/84 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner93.1
Rank #3/53 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
65.3
Rank #21/53 · confidence 3 · eval date 2026-02-01
Claude Fable 5
winner84.3
Rank #5/46 · confidence 2 · eval date 2026-06-09
Claude Opus 4.6
65.4
Rank #22/46 · confidence 3 · eval date 2026-02-01
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Fable 5 | Claude Opus 4.6 |
|---|---|---|
Winner: Claude Opus 4.6 | Claude Fable 5 claude-fable-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 97 10010010088 |
Winner: Claude Opus 4.6 | Claude Fable 5 claude-fable-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 91 7610086100 |
Winner: Claude Opus 4.6 | Claude Fable 5 claude-fable-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 89 56100100100 |
Winner: Claude Opus 4.6 | Claude Fable 5 claude-fable-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 88 6410086100 |
Winner: Claude Opus 4.6 | Claude Fable 5 claude-fable-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 84 648486100 |
Winner: Claude Opus 4.6 | Claude Fable 5 claude-fable-5 No audit yet | Claude Opus 4.6 claude-opus-4-6 Audit score 83 668480100 |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Fable 5 | Claude Opus 4.6 |
|---|---|---|
20 tests | Claude Fable 5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 42 tok/s / 2282ms input / output No data |
15 tests | Claude Fable 5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data |
5 tests | Claude Fable 5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 43 tok/s / 2285ms input / output No data |
5 tests | Claude Fable 5 speed / latency N/A / N/A input / output No data | Claude Opus 4.6 speed / latency 40 tok/s / 3103ms input / output No data |
5 tests | Claude Fable 5 speed / latency 39 tok/s / 3109ms input / output No data | Claude Opus 4.6 speed / latency N/A / N/A input / output No data |
Claude Fable 5 claude-fable-5 speed / latency No data input / output $0/M/$0/M | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0.479/M | |
Claude Fable 5 claude-fable-5 speed / latency No data input / output $0/request | Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0/request |
Weighted outcome: Claude Fable 5. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
