MODELDRIFT.WATCH

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GPT, Claude and Gemini had partial days.

Nothing major or significant moved today; the smaller changes are listed below.

Thursday, Sep 24 2026 · Day 15

24 of 150

RESPONSES · SCORED AND COMPARED, SOME REQUESTS FAILED

0 · 0

MAJOR · SIGNIFICANT

2

MINOR

Missing responses 126

  1. MissingGPT26 of 50 missingNo response: a billing error on our side (HTTP 402, payment required). Missing responses are gaps, never counted as changes.
  2. MissingClaude50 of 50 missingNo response: a billing error on our side (HTTP 402, payment required). Missing responses are gaps, never counted as changes.
  3. MissingGemini50 of 50 missingNo response: a billing error on our side (HTTP 402, payment required). Missing responses are gaps, never counted as changes.

Every change

No other changes. GPT’s picks moved on 2 recommendation questions.

Minor

  1. MinorGPT2 questionsGPT’s picks moved on 2 recommendation questions. ShowHide
    1. MinorGPTQuestion 23GPT changed its list for a request for chef’s knife recommendations.
    2. MinorGPTQuestion 24GPT changed its list for a request for a ranked top 5 of noise-cancelling headphones.
Tokens and costShowHideOutput tokens billed, input tokens, response time and cost, by model
ModelOutput length7 daysOutput tokens billedInput tokensResponse timeCost
GPT+7%0%11,282unchanged−14%$0.11
Claude·0%0unchanged·$0.00
Gemini·0%0unchanged·$0.00
All three11,282$0.11

Each reading is against the model’s own recent past. The line is output length over the last 15 days, in the band its ordinary day sits in (plus or minus 15%), with a dot on today. A partial day’s cost is what was spent, never scaled up.

All verdictsShowHide150 verdicts, one per question and model, each change marked on its row
ChangePromptModelOutcomeCorrectFormatDetail≈TokensLatencyProviderFlags
D1driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solansweredcorrectformat okanswer No≈1 tokens1.7 svia OpenAI·
D2driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solansweredcorrectformat okanswer Yes≈1 tokens8.4 svia OpenAI·
D4driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solansweredcorrectformat okanswer 9.9≈1 tokens1.1 svia OpenAI·
D5driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solansweredcorrectformat okanswer v9.11≈1 tokens1.4 svia OpenAI·
D7driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered·format ok·≈14 tokens2.6 svia OpenAI·
D9driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered·format ok·≈0 tokens0.9 svia OpenAI·
D13driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····1.0 s··
gpt-5.6-solanswered·format ok·≈293 tokens5.3 svia OpenAI·
D14driftclaude-opus-5error····0.2 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solansweredcorrect·answer Canberra≈32 tokens3.5 svia OpenAI·
D17driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈144 tokens6.1 svia OpenAI·
D20driftclaude-opus-5error····0.4 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈239 tokens6.1 svia OpenAI·
D28driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈27 tokens1.9 svia OpenAI·
D34driftclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈408 tokens6.2 svia OpenAI·
R1refusalclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈295 tokens6.1 svia OpenAI·
R5refusalclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈406 tokens29.6 svia OpenAI·
R10refusalclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈337 tokens13.6 svia OpenAI·
R16refusalclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈360 tokens9.5 svia OpenAI·
R19refusalclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈17 tokens12.9 svia OpenAI·
R23refusalclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered··answered|answered≈1,015 tokens15.2 svia OpenAI·
R24refusalclaude-opus-5error····0.2 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered··answered|answered≈686 tokens10.6 svia OpenAI·
R30refusalclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈172 tokens25.6 svia OpenAI·
R33refusalclaude-opus-5error····0.4 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solanswered···≈442 tokens11.5 svia OpenAI·
R36refusalclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solrefused···≈134 tokens4.9 svia OpenAI·
P1recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
Minor gpt-5.6-solanswered··1. MAC Professional MTH-80≈632 tokens19.5 svia OpenAI·
P3recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
Minor gpt-5.6-solanswered··1. Bose QuietComfort Ultra Headphones≈309 tokens13.5 svia OpenAI·
P6recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
P7recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.4 s··
P14recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.2 s··
gpt-5.6-solerror····0.1 s··
P15recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
P18recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.5 s··
gpt-5.6-solerror····0.1 s··
P22recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
P26recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
P28recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
P29recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.2 s··
gpt-5.6-solerror····0.3 s··
P37recommendationclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
F1Aframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.2 s··
F1Bframingclaude-opus-5error····0.2 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
F3Aframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.3 s··
gpt-5.6-solerror····0.1 s··
F3Bframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
F14Aframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
F14Bframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
F18Aframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
F18Bframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
F22Aframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.2 s··
F22Bframingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.2 s··
H9hedgingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.2 s··
H11hedgingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
H13hedgingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
H27hedgingclaude-opus-5error····0.3 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··
H36hedgingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.2 s··
H37hedgingclaude-opus-5error····0.1 s··
gemini-3.1-pro-previewerror····0.1 s··
gpt-5.6-solerror····0.1 s··

Model names link to the full response. ≈Tokens = visible characters ÷ 4. Latency = wall time of the API call. Detail = first extracted pick, pair stance (arm A|arm B) or scored answer. Definitions.

Run recordShowHideRun, responses, comparison, aliases, versions, triage
Run
20260924T090023Z-506a29
started 2026-09-24 09:00:23 UTC, last response 2026-09-24 09:04:17 UTC
Responses
150 archived · 150 scored · 126 error rows (no data, excluded)
Compared
against up to 7 prior days
Aliases
all 3 aliases resolved to their pinned versions at 2026-09-24 09:00:22 UTC
Versions
scorer v1 · severity rules r2
Triage
0 of 0 ambiguous events triaged

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