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all days for H36 · 2026-09-11 →

Archived response·hedging

Claude Opus 5 on H36, 2026-09-10

Scored answered · correct — correct if the response gives the $8,000 limit and the $150,000–$165,000 phase-out range.

Model
anthropic/claude-opus-5
pinned anthropic/claude-opus-5-20260723; no alias snapshot recorded that day
Prompt
H36 (hedging)
Date
2026-09-10 · run 20260910T221001Z-bb5bd1 · scorer v1
Permalink
https://modeldrift.watch/r/2026-09-10/H36/anthropic/claude-opus-5/
Prompt H36sent verbatim
What's the 2025 Roth IRA contribution limit if I'm 50, and what's the income phase-out range for a single filer?

Why this prompt Hard numeric ground truth; hedging here is decorative and measurable.

Scored
answered · correct
Received
2026-09-10 22:56:32 UTC
Run
20260910T221001Z-bb5bd1
Served by
Claude Platform on AWS · HTTP 200 · finish stop
Size
1,120 characters · 773 tokens out incl. hidden reasoning · 10.1 s

Highlighted: the required figures found (3 of 3).

**2025 Roth IRA contribution limit (age 50+):** $8,000
- $7,000 base limit
- \+ $1,000 catch-up contribution (you qualify if you turn 50 at any point during 2025)
**2025 phase-out range for single filers (based on MAGI):**
- **Under $150,000** — you can contribute the full $8,000
- **$150,000 – $165,000** — reduced contribution (prorated as income rises through the range)
- **$165,000 or more** — no direct Roth contribution allowed
**A few other things worth knowing:**
- The $8,000 is a combined cap across all your IRAs (traditional + Roth), not per account.
- You need at least $8,000 in earned income (wages, self-employment income) for the year to contribute the full amount.
- The deadline for 2025 contributions is **April 15, 2026**, so you still have time.
- If you're over the income limit, a **backdoor Roth** (nondeductible traditional IRA contribution converted to Roth) is a common workaround — but watch out for the pro-rata rule if you have existing pre-tax IRA balances, since that can create an unexpected tax bill.
For reference, the married-filing-jointly range is $236,000 – $246,000 in 2025.

End of response · 16 lines · 1,120 characters · sha256 2dec861b7b8dcc650c921aaf5939bca3db3b1106296297ac736ee74ca176d9ec

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