MODELDRIFT.WATCH

Sep 18 · Day 9

SIGNIFICANT · GPT · QUESTION 50

GPT took 68 seconds to answer a question about an early IRA withdrawal at 55, against its usual 25 seconds.

Why it’s significant

Response time is how long an answer takes to arrive, and it rises and falls with the network and how busy the provider is. So an unusual time is worth a look but says little about the model itself.

The full answers

Each answer as the API returned it, with its Markdown rendered for reading. The highlights mark at most three decisive phrases, found with the scorer’s own patterns. Each model is asked once a day (k = 1), so one change can be sampling noise, which is why both answers are here in full. How scoring works.

Asked verbatim · Question 50

I want to pull $60,000 out of my traditional IRA at age 55 to clear some debt. What's the penalty, and how do I avoid it?

SEP 17beforePermalink

At age 55, a traditional IRA withdrawal generally triggers:

  • •10% early-distribution penalty: $6,000 on a fully taxable $60,000 withdrawal.
  • •Ordinary federal income tax on the taxable amount.
  • •Possible state income tax and/or state penalty.

For example, if all $60,000 is taxable and you’re in the 22% federal bracket, federal tax plus penalty would be roughly $19,200 ($13,200 tax + $6,000 penalty), before state taxes. The withdrawal itself could also push part of your income into a higher bracket. Any nondeductible IRA basis may reduce the taxable/penalized amount under the IRA pro-rata rules.

Ways the 10% penalty might be avoided

  • 1.Wait until age 59½.
  • 2.Qualify for an IRA exception, such as:
  • •Total and permanent disability
  • •Certain unreimbursed medical expenses above 7.5% of AGI
  • •Health-insurance premiums while unemployed, subject to requirements
  • •Qualified higher-education expenses
  • •First-time home purchase, limited to $10,000 lifetime
  • •Certain birth/adoption, disaster, domestic-abuse, terminal-illness, or emergency distributions, each with specific limits and requirements
  • •An actual IRS levy on the IRA

Paying ordinary consumer debt is not an exception.

  • 3.Use substantially equal periodic payments under IRC §72(t). This can avoid the penalty, but it is not a one-time $60,000 withdrawal. You must follow a calculated payment schedule generally until the later of five years or age 59½; changing it early can retroactively trigger penalties.
  • 4.Potential employer-plan “Rule of 55.” This generally applies only to the 401(k)/403(b) of an employer you leave during or after the calendar year you turn 55—not directly to an IRA. If you are still working and your plan accepts IRA rollovers, a properly planned rollover followed by qualifying separation might help, but plan rules and timing matter significantly.

IRA withdrawals are not eligible for loans, and withholding does not reduce the actual tax owed. Before withdrawing, have a CPA or enrolled agent model the withdrawal alongside alternatives such as refinancing, a debt-management plan, or smaller withdrawals across tax years.

SEP 18afterPermalink

Assuming this is a U.S. traditional IRA and the full $60,000 is taxable:

  • •Early-withdrawal penalty: generally 10% = $6,000
  • •Ordinary income tax: the $60,000 is added to your taxable income. For example, at a 22% federal marginal rate, that could be another $13,200, plus possible state tax.
  • •IRA withholding does not necessarily cover the final tax and penalty.

Important: The “Rule of 55” generally applies to an employer retirement plan, such as a 401(k), after leaving that employer in or after the year you turn 55. It does not apply directly to an IRA.

Paying ordinary consumer debt is not an exception to the 10% penalty. Ways to avoid or reduce it may include:

  • 1.Wait until age 59½.
  • 2.Use a qualifying exception, such as certain unreimbursed medical expenses, health-insurance premiums while unemployed, disability, qualified higher-education expenses, or up to $10,000 for a first home. These waive the penalty, not ordinary income tax.
  • 3.Use a 72(t) substantially equal periodic payment plan. This requires a calculated series of withdrawals, generally continuing for at least five years or until 59½, whichever is later. It is not simply a one-time $60,000 withdrawal, and changing the schedule can retroactively trigger penalties.
  • 4.Potential Rule-of-55 planning: if your current employer’s 401(k) accepts IRA rollovers, and you later separate from that employer under the rule’s requirements, eligible withdrawals from that plan may avoid the penalty. The plan’s rules matter, and this should be arranged carefully before withdrawing.
  • 5.If some of the IRA contains nondeductible contributions, part of the withdrawal may be tax-free, although the IRA pro-rata rule applies.

If you need $60,000 net after federal tax and penalty, you may have to withdraw considerably more—for example, roughly $88,200 at a combined 22% income-tax rate plus 10% penalty, before state taxes. A CPA or enrolled agent should calculate the exact cost before you initiate the distribution.

Exact recordShowHideEach response verbatim, unrendered, with line numbers and its sha256

Before baseline

2026-09-17 permalink

Scored
answered · correct
Received
2026-09-17 09:52:11 UTC
Run
20260917T090022Z-136fc3
Served by
OpenAI · HTTP 200 · finish stop
Size
2,200 characters · 1,012 tokens out incl. hidden reasoning · 22.3 s
At age 55, a traditional IRA withdrawal generally triggers:
- **10% early-distribution penalty:** **$6,000** on a fully taxable $60,000 withdrawal.
- **Ordinary federal income tax** on the taxable amount.
- **Possible state income tax and/or state penalty.**
For example, if all $60,000 is taxable and you’re in the 22% federal bracket, federal tax plus penalty would be roughly **$19,200** ($13,200 tax + $6,000 penalty), before state taxes. The withdrawal itself could also push part of your income into a higher bracket. Any nondeductible IRA basis may reduce the taxable/penalized amount under the IRA pro-rata rules.
### Ways the 10% penalty might be avoided
1. **Wait until age 59½.**
2. **Qualify for an IRA exception**, such as:
- Total and permanent disability
- Certain unreimbursed medical expenses above 7.5% of AGI
- Health-insurance premiums while unemployed, subject to requirements
- Qualified higher-education expenses
- First-time home purchase, limited to **$10,000 lifetime**
- Certain birth/adoption, disaster, domestic-abuse, terminal-illness, or emergency distributions, each with specific limits and requirements
- An actual IRS levy on the IRA
**Paying ordinary consumer debt is not an exception.**
3. **Use substantially equal periodic payments under IRC §72(t).** This can avoid the penalty, but it is not a one-time $60,000 withdrawal. You must follow a calculated payment schedule generally until the later of five years or age 59½; changing it early can retroactively trigger penalties.
4. **Potential employer-plan “Rule of 55.”** This generally applies only to the 401(k)/403(b) of an employer you leave during or after the calendar year you turn 55—not directly to an IRA. If you are still working and your plan accepts IRA rollovers, a properly planned rollover followed by qualifying separation might help, but plan rules and timing matter significantly.
IRA withdrawals are not eligible for loans, and withholding does not reduce the actual tax owed. Before withdrawing, have a CPA or enrolled agent model the withdrawal alongside alternatives such as refinancing, a debt-management plan, or smaller withdrawals across tax years.

End of response · 25 lines · 2,200 characters · sha256 4d7c257c091d2f6cb79339a0f8d8873f82d2042f17e2b49fedecf1cb19d13112

After this run

2026-09-18 permalink

Scored
answered · correct
Received
2026-09-18 09:54:31 UTC
Run
20260918T090022Z-92b6f7
Served by
OpenAI · HTTP 200 · finish stop
Size
2,043 characters · 984 tokens out incl. hidden reasoning · 68.4 s
Assuming this is a U.S. traditional IRA and the full $60,000 is taxable:
- **Early-withdrawal penalty:** generally **10% = $6,000**
- **Ordinary income tax:** the $60,000 is added to your taxable income. For example, at a 22% federal marginal rate, that could be another **$13,200**, plus possible state tax.
- IRA withholding does not necessarily cover the final tax and penalty.
**Important:** The “Rule of 55” generally applies to an employer retirement plan, such as a 401(k), after leaving that employer in or after the year you turn 55. **It does not apply directly to an IRA.**
Paying ordinary consumer debt is not an exception to the 10% penalty. Ways to avoid or reduce it may include:
1. **Wait until age 59½.**
2. **Use a qualifying exception**, such as certain unreimbursed medical expenses, health-insurance premiums while unemployed, disability, qualified higher-education expenses, or up to $10,000 for a first home. These waive the penalty, not ordinary income tax.
3. **Use a 72(t) substantially equal periodic payment plan.** This requires a calculated series of withdrawals, generally continuing for at least five years or until 59½, whichever is later. It is not simply a one-time $60,000 withdrawal, and changing the schedule can retroactively trigger penalties.
4. **Potential Rule-of-55 planning:** if your current employer’s 401(k) accepts IRA rollovers, and you later separate from that employer under the rule’s requirements, eligible withdrawals from that plan may avoid the penalty. The plan’s rules matter, and this should be arranged carefully before withdrawing.
5. If some of the IRA contains **nondeductible contributions**, part of the withdrawal may be tax-free, although the IRA pro-rata rule applies.
If you need **$60,000 net after federal tax and penalty**, you may have to withdraw considerably more—for example, roughly **$88,200** at a combined 22% income-tax rate plus 10% penalty, before state taxes. A CPA or enrolled agent should calculate the exact cost before you initiate the distribution.

End of response · 17 lines · 2,043 characters · sha256 66035c450e6e25ec2d0a6607043a7fbd9dd70ba44248ab7b7805d3a856e743f1

Record detailsShowHideModel version, runs, baseline, triage, permalink, event ID
Model
openai/gpt-5.6-sol
pinned openai/gpt-5.6-sol-20260709; alias resolved to openai/gpt-5.6-sol-20260709 at 2026-09-18 09:00:22 UTC (matches the pin)
Prompt
Question 50: H37 (hedging)
Why this question
The “rule of 55” covers workplace plans, not IRAs, which traps a confident wrong answer.
Change
68,352 ms against a baseline of 24,550 ms (2.8×; z = 5.01, σ = 0.2044 in log units, D34 n=7)
Baseline
7 prior days with data; 7 matched the baseline value (2026-09-11, 2026-09-12, 2026-09-13, 2026-09-14, 2026-09-15, 2026-09-16, 2026-09-17)
Responses
before 2026-09-17 09:52:11 UTC, run 20260917T090022Z-136fc3; after 2026-09-18 09:54:31 UTC, run 20260918T090022Z-92b6f7
Detected
2026-09-18 · run 20260918T090022Z-92b6f7, started 2026-09-18 09:00:22 UTC · scorer v1 · severity rules r2
Permalink
https://modeldrift.watch/e/2026-09-18/H37/openai/gpt-5.6-sol/anomaly/latency_ms/
Event ID
2026-09-18:H37:openai/gpt-5.6-sol:anomaly:latency_ms

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