Compare / Claude Fable 5 vs GPT-5.2
Claude Fable 5 vs GPT-5.2
31 results from 8 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Fable 5 | GPT-5.2 |
|---|---|---|---|
| Arena (formerly LMArena)reported | OverallArena rating | 1,499 | 1,425 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,229 | 1,162 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,483 | 1,442 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,503 | 1,444 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,501 | 1,391 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,550 | 1,475 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,509 | 1,427 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,504 | 1,437 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,508 | 1,411 |
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 49.6 | 30.4 |
| Artificial Analysisreported | GPQA Diamond% of questions | 92.6% | 90.3% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 55.5% | 37.7% |
| Artificial Analysisreported | IFBench% of instructions | 63.5% | 75.4% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 82.3% | 82.7% |
| Artificial Analysisreported | Terminal-Bench Hard% of tasks | 62.9% | 47.0% |
| Artificial Analysisreported | Τ-bench banking% of tasks | 38.1% | 11.1% |
| Artificial Analysisreported | Τ²-bench telecom% of tasks | 98.5% | 84.8% |
| OpenHands Indexreported | Average% resolved | 81.0% | 58.8% |
| OpenHands Indexreported | Front end (SWE-Bench Multimodal)% resolved | 70.6% | 30.9% |
| OpenHands Indexreported | Greenfield (Commit0)% resolved | 62.5% | 50.0% |
| OpenHands Indexreported | Information gathering (GAIA)% resolved | 84.2% | 65.5% |
| OpenHands Indexreported | Issue resolution (SWE-Bench)% resolved | 95.8% | 74.6% |
| OpenHands Indexreported | Testing (SWT-Bench)% resolved | 91.9% | 73.2% |
| Remote Labor Indexreported | Projects done to client standard% of projects | 16.1% | 2.5% |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 70.7% | 37.1% |
| tau2-benchreported | Consistency (pass^4)% of tasks | 28.9% | 18.6% |
| tau2-benchreported | Task success (pass^1)% of tasks | 39.7% | 32.2% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 2.0% | 76.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.41 | 0.40 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 74.2 | 49.4 |
| Vending-Bench 2reported | Money after a yearUS dollars | $5,680.26 | $3,591.33 |
Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.