Real-World Finance v2 (Anthropic)
Agents complete 294 long-horizon finance tasks such as building financial models. A model grader compares deliverables pairwise and ratings are fit as Elo.
In-house Anthropic evaluation. Scores are Elo with Sonnet 4.6 fixed at 1000, so they do not compare with the first version.
- Made by
- Anthropic
- Kind
- Finance
- Level
- Expert
- Scored
- Graded by a model
- Answers
- Agent task
- Tasks
- Kept private
- Strongest model tested
- Claude Fable 5.2 #1 on the capability index
- Last in a system card
- November 2026
- Last model added
- November 2026
Claude Fable 5.2 leads with 1,637
Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.
Bars start at 1,200.
- 1 Claude Fable 5.2 1,637
- 2 Claude Fable 5 1,374
- 3 Claude Sonnet 5 1,219
Source: Labs’ model cards
| # | Model | Score | Setting | Date | Source |
|---|---|---|---|---|---|
| 1 | Claude Fable 5.2 | 1,637 | Nov 2026 | Lab model card | |
| 2 | Claude Fable 5 | 1,374 | Jun 2026 | Lab model card | |
| 3 | Claude Sonnet 5 | 1,219 | Jun 2026 | Lab model card |
2 models have held number one in labs’ own numbers since 2023
Lab claims count from the day the card came out, independent runs from the model’s release.
Source: Labs’ model cards
Scores over time
All the scores we have, one dot each, so a model tested at several settings appears more than once.
Source: Labs’ model cards
Labs report it only in system cards
We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark. Some system cards do, below.
3 system cards report it, from 1 lab
Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.
| Date | Document | Score | As the document writes it | Section |
|---|---|---|---|---|
| Nov 9, 2026 | Claude Fable 5.2 system card | 1637 | Real-World Finance v2 Elo, max effort, one attempt at each of 123 tasks. Opus 5.5 grader gaps divided by 2.61 and anchored to Fable 5 at 1374. Six unfinished tasks excluded from headline comparison (Section 8.14.6) | Capabilities |
| Jun 30, 2026 | Claude Sonnet 5 system card | 1219 | Real-World Finance v2 Elo, 294 tasks, pairwise Opus 4.8 grader, Sonnet 4.6 anchored at 1000 (8.11.2, Figure 8.11.2.A) | Capabilities |
| Jun 9, 2026 | Claude Fable 5 system card | 1374 | Real-World Finance v2 Elo, 294 tasks, 2,491 pairwise grades, Opus 4.8 grader, Sonnet 4.6 anchored at 1000, labeled Fable/Mythos 5; preferred over Opus 4.8 in 74% of comparisons (8.17.3.1, Figure 8.17.3.1.A) | Capabilities |
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