Compare / Claude Opus 4.8 vs Inkling
Claude Opus 4.8 vs Inkling
15 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.
| Benchmark | Metric | Claude Opus 4.8 | Inkling |
|---|---|---|---|
| APEX-Agentsreported | Tasks passed% of tasks | 48.9% | 33.8% |
| Arena (formerly LMArena)reported | Confirmed task successIPS effect estimate | 0.04 | -0.22 |
| Arena (formerly LMArena)reported | Praise over complaintIPS effect estimate | 0.15 | -0.22 |
| Arena (formerly LMArena)reported | SteerabilityIPS effect estimate | 0.10 | -0.12 |
| Arena (formerly LMArena)reported | Tool groundingIPS effect estimate | -0.00 | -0.00 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,469 | 1,452 |
| Arena (formerly LMArena)reported | Business, management and financeArena rating | 1,490 | 1,444 |
| Arena (formerly LMArena)reported | Creative writingArena rating | 1,467 | 1,384 |
| Arena (formerly LMArena)reported | Expert promptsArena rating | 1,525 | 1,474 |
| Arena (formerly LMArena)reported | Instruction followingArena rating | 1,491 | 1,427 |
| Arena (formerly LMArena)reported | OverallArena rating | 1,480 | 1,442 |
| Arena (formerly LMArena)reported | Writing, literature and languageArena rating | 1,474 | 1,403 |
| SimpleQA Verified (Epoch AI)reported | Correct answers% of questions | 53.0% | 40.3% |
| tau2-benchreported | Consistency (pass^4)% of tasks | 22.7% | 11.3% |
| tau2-benchreported | Task success (pass^1)% of tasks | 39.7% | 25.0% |
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.