Data points: 129
Model compare
The readout for Claude Fable 5 and GPT-5.2, 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 70.7 to 29.3.
Evidence depth
129 data points
Includes 25 benchmark rows, 3 audit samples, and 8 provider examples.
Selection signal
Start with Claude Fable 5
The charts below split 36 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 GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | Claude Fable 5 | GPT-5.2 |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 70.7 pts | 29.3 pts |
| Benchmark category leads | 5 categories | 1 categories |
| Operational advantages | Average speed | Cheapest input price, First-token latency, Free providers, Provider coverage |
| Context window | 1M tokens | 400K tokens |
| Max output | 128K tokens | 128K tokens |
| Modalities | Input TextImageFile Output Text |
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 | GPT-5.2 |
|---|---|---|
| Developer | Anthropic | OpenAI |
| Released | Jun 2026 | Dec 2025 |
| Parameters | No data | No data |
| Tokenizer | Claude | GPT |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-fable-5 | openai/gpt-5.2 |
| References | No data | No data |
This report only uses LMSpeed data for Claude Fable 5 and GPT-5.2: 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, Multimodal) and operational dimensions (Average speed).
GPT-5.2
GPT-5.2 is stronger in benchmark categories (Instruction following) and operational dimensions (Cheapest input price, First-token latency, 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
GPT-5.2
52.8
Claude Fable 5 leads by 18.6
Claude Fable 5 leads by 11.4
Claude Fable 5 leads by 6.4
Claude Fable 5 leads by 3.4
GPT-5.2
No data
Claude Fable 5 leads by 2.6
GPT-5.2 leads by 4.3
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
GPT-5.2
53.0
Rank #50/84 · confidence 3 · eval date 2025-12-11
Claude Fable 5
$10.00/M
Rank #153/162 · confidence 4
GPT-5.2
winner$1.75/M
Rank #120/162 · confidence 4
Claude Fable 5
$20.00/M
Rank #154/162 · confidence 4
GPT-5.2
winner$4.81/M
Rank #132/162 · confidence 4
Claude Fable 5
$50.00/M
Rank #154/162 · confidence 4
GPT-5.2
winner$14.00/M
Rank #133/162 · confidence 4
Claude Fable 5
winner53.3%
Rank #4/187 · confidence 4
GPT-5.2
7.3%
Rank #109/187 · confidence 4
Claude Fable 5
winner28.6
Rank #5/73 · confidence 2 · eval date 2026-06-09
GPT-5.2
11.6
Rank #20/73 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner92.6%
Rank #8/188 · confidence 4
GPT-5.2
71.2%
Rank #110/188 · confidence 4
Claude Fable 5
70.0
Rank #19/89 · confidence 2 · eval date 2026-06-09
GPT-5.2
winner72.7
Rank #13/89 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner60.2
Rank #1/96 · confidence 2 · eval date 2026-06-09
GPT-5.2
52.1
Rank #18/96 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner83.1
Rank #1/65 · confidence 2 · eval date 2026-06-09
GPT-5.2
52.2
Rank #34/65 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner60.2%
Rank #1/185 · confidence 4
GPT-5.2
40.4%
Rank #64/185 · confidence 4
Claude Fable 5
winner80.0
Rank #1/37 · confidence 2 · eval date 2026-06-09
GPT-5.2
55.6
Rank #25/37 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner95.0
Rank #1/43 · confidence 2 · eval date 2026-06-09
GPT-5.2
80.0
Rank #12/43 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner53.3
Rank #1/96 · confidence 2 · eval date 2026-06-09
GPT-5.2
35.4
Rank #21/96 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner61.4
Rank #1/90 · confidence 2 · eval date 2026-06-09
GPT-5.2
43.8
Rank #16/90 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner59.9
Rank #1/99 · confidence 2 · eval date 2026-06-09
GPT-5.2
42.2
Rank #22/99 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner92.6
Rank #7/96 · confidence 2 · eval date 2026-06-09
GPT-5.2
90.3
Rank #19/96 · confidence 3 · eval date 2025-12-11
Claude Fable 5
69.2
Rank #26/55 · confidence 2 · eval date 2026-06-09
GPT-5.2
winner80.8
Rank #11/55 · confidence 3 · eval date 2025-12-11
Claude Fable 5
54.9
Rank #62/90 · confidence 2 · eval date 2026-06-09
GPT-5.2
winner79.7
Rank #39/90 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner1332.0
Rank #3/66 · confidence 2 · eval date 2026-06-09
GPT-5.2
1224.0
Rank #37/66 · confidence 3 · eval date 2025-12-11
Claude Fable 5
64.0
Rank #22/35 · confidence 2 · eval date 2026-06-09
GPT-5.2
winner70.3
Rank #11/35 · confidence 3 · eval date 2025-12-11
Claude Fable 5
63.5
Rank #49/86 · confidence 2 · eval date 2026-06-09
GPT-5.2
winner75.4
Rank #21/86 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner85.0
Rank #1/21 · confidence 2 · eval date 2026-06-09
GPT-5.2
47.3
Rank #20/21 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner98.5
Rank #2/84 · confidence 2 · eval date 2026-06-09
GPT-5.2
84.8
Rank #44/84 · confidence 3 · eval date 2025-12-11
Claude Fable 5
winner93.1
Rank #3/53 · confidence 2 · eval date 2026-06-09
GPT-5.2
22.0
Rank #48/53 · confidence 3 · eval date 2025-12-11
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Fable 5 | GPT-5.2 |
|---|---|---|
Winner: Claude Fable 5 | Claude Fable 5 claude-fable-5 Audit score 79 648468100 | GPT-5.2 gpt-5.2 No audit yet |
Winner: Claude Fable 5 | Claude Fable 5 claude-fable-5 Audit score 78 70728088 | GPT-5.2 gpt-5.2 No audit yet |
Winner: Claude Fable 5 | Claude Fable 5 claude-fable-5 Audit score 78 70728088 | GPT-5.2 gpt-5.2-chat-latest No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Fable 5 | GPT-5.2 |
|---|---|---|
15 tests | Claude Fable 5 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 56 tok/s / 1798ms input / output No data |
10 tests | Claude Fable 5 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 94 tok/s / 11492ms input / output No data |
5 tests | Claude Fable 5 speed / latency N/A / N/A input / output No data | GPT-5.2 speed / latency 64 tok/s / 3553ms input / output No data |
5 tests | Claude Fable 5 speed / latency 39 tok/s / 3109ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
5 tests | Claude Fable 5 speed / latency 36 tok/s / 2933ms input / output No data | GPT-5.2 speed / latency N/A / N/A input / output No data |
Claude Fable 5 claude-fable-5 speed / latency No data input / output $80.30/M/$401.50/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0/M | |
Claude Fable 5 claude-fable-5 speed / latency No data input / output $0/M/$0/M | GPT-5.2 gpt-5.2 speed / latency No data input / output $0.024/M | |
Claude Fable 5 claude-fable-5 speed / latency No data input / output $0/request | GPT-5.2 gpt-5.2-chat-latest 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%.
Input
Output
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
|---|
