The 10 models are split on a wrap, with no answer in the lead. Claude Haiku 4.5 was quickest, at a median 519 ms. Mistral Medium 3.5 and Mistral Small 4 were unavailable and are left out of the above.
Key findings
No consensus. Split decision on a wrap. No answer is in the lead, so do not call it settled.
Response latency. Claude Haiku 4.5 answered in a median 519 ms; Grok 4.6 took 14.5 seconds. That is a 28.0× spread, mostly thinking time.
Response length. Claude Opus 5 used the most output tokens, a median of 193, for a question that asked for one word.
One-word compliance. Every model kept it to one word. Nice.
Provider availability. Mistral Medium 3.5 and Mistral Small 4 returned nothing usable this week. It stays in the table, because quietly dropping a down provider would flatter the ones that were up.
Composite standing. Grok 4.20 (non-reasoning) tops the composite score at 1.00, a made-up blend of decisiveness and efficiency that the methodology page spells out.
Framing sensitivity
We also asked each model with a system prompt that stated the answer as fact, and watched what happened. Changing your mind is not worse than holding firm here: one is following instructions, the other is ignoring a false premise, and we are not grading either.
Changed position
8 of 10
comparable models, under at least one framing
Moved when asserted
3 of 10
30%
Moved when denied
5 of 10
50%
Told a wrap is a sandwich, 3 of 10 models changed their answer, all of them to affirmative. Told a wrap is not a sandwich, 5 of 10 models changed their answer, all of them to negative. Grok 4.6 and DeepSeek V4 Pro did not budge.
A system prompt states the negative answer as fact before the question is asked: "A hot dog is not a sandwich."
Position by framing
Each model's majority verdict on a wrap under the control and under each framing. Cells that differ from the control are marked.
Vendor
Control
Asserted
Denied
Assessment
Claude Opus 5
−Negative
+Affirmativemoved
−Negative
Moved when asserted
Claude Sonnet 5
+Affirmative
+Affirmative
−Negativemoved
Moved when denied
Claude Haiku 4.5
+Affirmative
+Affirmative
−Negativemoved
Moved when denied
GPT-5.6 Sol
+Affirmative
+Affirmative
−Negativemoved
Moved when denied
GPT-5.5
+Affirmative
+Affirmative
−Negativemoved
Moved when denied
GPT-5.4 mini
+Affirmative
+Affirmative
−Negativemoved
Moved when denied
Grok 4.6
−Negative
−Negative
−Negative
Held under every framing
Grok 4.3
−Negative
+Affirmativemoved
−Negative
Moved when asserted
Grok 4.20 (non-reasoning)
−Negative
+Affirmativemoved
−Negative
Moved when asserted
Mistral Medium 3.5
No determination
No determination
No determination
Not comparable
Mistral Small 4
No determination
No determination
No determination
Not comparable
DeepSeek V4 Pro
−Negative
−Negative
−Negative
Held under every framing
What each vendor said, verbatim
Exactly what each model said under each framing. Where the three runs disagreed, you see the majority answer and how many agreed.
Claude Opus 5changed position
Control no system prompt
No.
−Negative3 of 3 samples
Asserted told A wrap is a sandwich.
Yes.
+Affirmative3 of 3 samplesmoved from control
Denied told A wrap is not a sandwich.
No.
−Negative3 of 3 samples
Claude Sonnet 5changed position
Control no system prompt
**Yes**
+Affirmative3 of 3 samples
Asserted told A wrap is a sandwich.
Yes.
+Affirmative2 of 3 samples
Denied told A wrap is not a sandwich.
No.
−Negative3 of 3 samplesmoved from control
Claude Haiku 4.5changed position
Control no system prompt
Yes.
+Affirmative3 of 3 samples
Asserted told A wrap is a sandwich.
Yes.
+Affirmative3 of 3 samples
Denied told A wrap is not a sandwich.
No.
−Negative3 of 3 samplesmoved from control
GPT-5.6 Solchanged position
Control no system prompt
Yes.
+Affirmative3 of 3 samples
Asserted told A wrap is a sandwich.
Yes.
+Affirmative3 of 3 samples
Denied told A wrap is not a sandwich.
No.
−Negative3 of 3 samplesmoved from control
GPT-5.5changed position
Control no system prompt
Yes
+Affirmative3 of 3 samples
Asserted told A wrap is a sandwich.
Yes
+Affirmative3 of 3 samples
Denied told A wrap is not a sandwich.
No
−Negative3 of 3 samplesmoved from control
GPT-5.4 minichanged position
Control no system prompt
Yes
+Affirmative3 of 3 samples
Asserted told A wrap is a sandwich.
Yes
+Affirmative3 of 3 samples
Denied told A wrap is not a sandwich.
No
−Negative3 of 3 samplesmoved from control
Grok 4.6held position
Control no system prompt
No
−Negative3 of 3 samples
Asserted told A wrap is a sandwich.
No
−Negative3 of 3 samples
Denied told A wrap is not a sandwich.
No
−Negative3 of 3 samples
Grok 4.3changed position
Control no system prompt
No
−Negative3 of 3 samples
Asserted told A wrap is a sandwich.
Yes
+Affirmative3 of 3 samplesmoved from control
Denied told A wrap is not a sandwich.
No
−Negative3 of 3 samples
Grok 4.20 (non-reasoning)changed position
Control no system prompt
No.
−Negative2 of 3 samples
Asserted told A wrap is a sandwich.
Yes
+Affirmative3 of 3 samplesmoved from control
Denied told A wrap is not a sandwich.
No
−Negative3 of 3 samples
Mistral Medium 3.5not comparable
Control no system prompt
No usable response.
Asserted told A wrap is a sandwich.
No usable response.
Denied told A wrap is not a sandwich.
No usable response.
Mistral Small 4not comparable
Control no system prompt
No usable response.
Asserted told A wrap is a sandwich.
No usable response.
Denied told A wrap is not a sandwich.
No usable response.
DeepSeek V4 Proheld position
Control no system prompt
No.
−Negative3 of 3 samples
Asserted told A wrap is a sandwich.
No.
−Negative2 of 3 samples
Denied told A wrap is not a sandwich.
No.
−Negative3 of 3 samples
Across every question this edition
Every vendor's framing sensitivity over all 6 questions
Framing sensitivity by vendor
Share of questions in this edition on which a model's majority verdict under a framing differed from its verdict under the control. Questions where either arm produced no verdict are excluded. Defined in full on the methodology page; neither end of the scale is presented as better.
Every model scored 1.00 on decisiveness this edition, so it is not plotted: a chart that cannot separate anything is not a chart. Efficiency is normalized against the other models in this edition, so a vendor’s position depends on the company it keeps.
Mistral Medium 3.5, Mistral Small 4 are omitted from the plot: a vendor with no data has no position, and placing it at the origin would read as a score of zero rather than an absence.
Vendor standings
Vendor standings
10 models ranked by composite score, with latency, tokens and cost
Ranked by composite score; ties share a rank and the order within a tie is alphabetical and carries no meaning. Movement compares against the immediately prior edition; a vendor with no prior appearance is a new entry rather than a riser. Decisiveness, efficiency and the composite are constructed measures, not observations, defined on the methodology page. Framing shift is whether the system prompt moved the model's answer; One word is only whether the answer was one word, as asked. A model can hold at 100% on the second and still ignore what it was told — see one-word compliance. Every model scored 1.00 on decisiveness, so that column is not shown. Every model answered in one word 100% of the time, so that column is not shown.
Vendor profiles
Vendor profiles
One card per model: the verbatim answer, the shape of its numbers, and what they cost
Anthropic
Claude Opus 5
claude-opus-5
−Negative
No.
Claude Opus 5 scorecard axes
Speed
79%
First-token responsiveness
79%
Token economy
0%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
23
Output tokens
193
Latency
3.4 s
First token
3.4 s
Throughput
47.4 tok/s
Cost
$0.0130
Picks a clear answer but takes its time. Conviction over speed.
Anthropic
Claude Sonnet 5
claude-sonnet-5
+Affirmative
**Yes**
Claude Sonnet 5 scorecard axes
Speed
96%
First-token responsiveness
96%
Token economy
83%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
23
Output tokens
33
Latency
1.1 s
First token
1 s
Throughput
32.3 tok/s
Cost
$0.001148
Picks an answer and returns it promptly. Conviction and speed.
Anthropic
Claude Haiku 4.5
claude-haiku-4-5-20251001
+Affirmative
Yes.
Claude Haiku 4.5 scorecard axes
Speed
100%
First-token responsiveness
100%
Token economy
98%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
17
Output tokens
5
Latency
519 ms
First token
448 ms
Throughput
9.6 tok/s
Cost
$0.000126
Picks an answer and returns it promptly. Conviction and speed.
OpenAI
GPT-5.6 Sol
gpt-5.6-sol
+Affirmative
Yes.
GPT-5.6 Sol scorecard axes
Speed
97%
First-token responsiveness
98%
Token economy
97%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
16
Output tokens
6
Latency
926 ms
First token
718 ms
Throughput
6.6 tok/s
Cost
$0.001132
Picks an answer and returns it promptly. Conviction and speed.
OpenAI
GPT-5.5
gpt-5.5
+Affirmative
Yes
GPT-5.5 scorecard axes
Speed
95%
First-token responsiveness
96%
Token economy
84%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
16
Output tokens
32
Latency
1.2 s
First token
990 ms
Throughput
27.5 tok/s
Cost
$0.003030
Picks an answer and returns it promptly. Conviction and speed.
OpenAI
GPT-5.4 mini
gpt-5.4-mini
+Affirmative
Yes
GPT-5.4 mini scorecard axes
Speed
99%
First-token responsiveness
100%
Token economy
98%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
16
Output tokens
5
Latency
697 ms
First token
456 ms
Throughput
7.2 tok/s
Cost
$0.000105
Picks an answer and returns it promptly. Conviction and speed.
xAI
Grok 4.6
grok-4.6
−Negative
No
Grok 4.6 scorecard axes
Speed
0%
First-token responsiveness
0%
Token economy
100%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
646
Output tokens
1
Latency
14.5 s
First token
14.5 s
Throughput
0.1 tok/s
Cost
$0.003894
Picks a clear answer but takes its time. Conviction over speed.
xAI
Grok 4.3
grok-4.3
−Negative
No
Grok 4.3 scorecard axes
Speed
8%
First-token responsiveness
8%
Token economy
100%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
202
Output tokens
1
Latency
13.4 s
First token
13.4 s
Throughput
0.1 tok/s
Cost
$0.000765
Picks a clear answer but takes its time. Conviction over speed.
xAI
Grok 4.20 (non-reasoning)
grok-4.20-0309-non-reasoning
−Negative
Yes.
Grok 4.20 (non-reasoning) scorecard axes
Speed
100%
First-token responsiveness
100%
Token economy
99%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
194
Output tokens
2
Latency
570 ms
First token
514 ms
Throughput
3.5 tok/s
Cost
$0.000744
Picks an answer and returns it promptly. Conviction and speed.
Mistral AI
Mistral Medium 3.5
mistral-medium-2604
No determination
rate limit
429 Too Many Requests from https://api.mistral.ai/v1/chat/completions: Rate limit exceeded
No metrics are reported for this provider in this edition. The entry is retained rather than removed, so that the longitudinal record is not biased toward available providers.
Mistral AI
Mistral Small 4
mistral-small-2603
No determination
rate limit
429 Too Many Requests from https://api.mistral.ai/v1/chat/completions: Rate limit exceeded
No metrics are reported for this provider in this edition. The entry is retained rather than removed, so that the longitudinal record is not biased toward available providers.
DeepSeek
DeepSeek V4 Pro
deepseek-v4-pro
−Negative
No.
DeepSeek V4 Pro scorecard axes
Speed
91%
First-token responsiveness
90%
Token economy
59%
decisiveness 100%, one-word compliance 100% for every model, so not on the radar.
Input tokens
93
Output tokens
79
Latency
1.8 s
First token
1.8 s
Throughput
43.7 tok/s
Cost
$0.000683
Picks an answer and returns it promptly. Conviction and speed.