Which is bigger: 9.11 or 9.9? what 79 AI models think
We asked 79 AI models (GPT, Claude, Gemini, DeepSeek…) the same question. The answer was 9.9; 75 got it right. See every answer and who dissented.
Which is bigger: 9.11 or 9.9?
Asked verbatim: “Which number is bigger: 9.11 or 9.9?”
How the AIs voted
One dot per model. Hover for the model, its lab and its argument.
5%9.11
4 models
95%9.9
PU
75 models
By lab
- Google6 / 6 9.9
- OpenAI6 / 6 9.9
- Qwen5 / 5 9.9
- Z.AI5 / 5 9.9
- Aion Labs4 / 4 9.9
- Anthropic4 / 4 9.9
- 22 other labs45 / 49 9.9
79 of 79 models have voted. Hover a dot for the model, its lab and its argument.
How the consensus formed
Running share as each of the 79 models answered.
The read
Nearly all models (about 73 of 78) correctly picked 9.9 as bigger than 9.11, since 9.9=9.90>9.11. Notable dissenters were Nemotron 3 Nano, Nemotron 3.5 Lightning, and Llama 4 Maverick, which picked 9.11, while MiMo V2.5 Pro's reasoning flip-flopped mid-answer before landing on the wrong pick.
Written by claude-sonnet-5 after reading every answer.
The contrarians
4 models went against the room.
- Nemotron 3 Nano 30BNVIDIAWrongMemory
9.1199% sure
9.11 has a larger tenth digit (1 > 9) after the decimal point.
- MiMo V2.5 ProXiaomiWrongMemory
9.11100% sure
9.11 has 11 hundredths after the decimal, while 9.9 has 90 hundredths—wait, actually 9.90 > 9.11, so I need to recalculate.
- Nemotron 3.5 LightningNVIDIAWrongMemory
9.1199% sure
9.11 has a larger tenths digit than 9.9, so it is greater when compared as written.
- Llama 4 MaverickMetaWrongMemory
9.11100% sure
9.11 is greater than 9.9 because 9.11 has a larger hundredths value than 9.9 when compared directly as 9.11 and 9.90.
Every answer
79 answers · in the order they came in · unedited apart from length.
- Nemotron 3 Nano 30BNVIDIA
9.1199%
9.11 has a larger tenth digit (1 > 9) after the decimal point.
Wrong
- Laguna XS 2.1Poolside
9.9100%
9.9 has a larger tenths digit (9 vs 1), making it bigger despite 9.11 having more total digits.
Right
- Gemini 3.8 Flash (Medium Reasoning)Google
9.9100%
9.9 equals 9.90, which is larger than 9.11 because nine tenths beats one tenth.
Right
- MiMo V2.5 ProXiaomi
9.11100%
9.11 has 11 hundredths after the decimal, while 9.9 has 90 hundredths—wait, actually 9.90 > 9.11, so I need to recalculate.
Wrong
- Inkling SmallThinking Machines
9.995%
9.9 = 9.90, which is larger than 9.11; stop comparing digit count.
Right
- Gemini 3.6 Flash (Medium Reasoning)Google
9.9100%
9.9 equals 9.90, which is greater than 9.11 because nine-tenths is larger than one-tenth.
Right
- Muse Glimmer 30B (Low Reasoning)Meta
9.9100%
9.9 is 9.90, which is larger than 9.11 by 0.79.
Right
- GLM-5.3 (Low Reasoning)Z.AI
9.9100%
9.9 is 9.90, which beats 9.11 — the ".11" looks bigger but it's smaller than 90 hundredths.
Right
- Aion 3.0 Mini (Reasoning)Aion Labs
9.9100%
9.9 equals 9.90, and 0.90 is larger than 0.11 — decimal place value beats digit-by-digit comparison.
Right
- GLM-5.3 Flash (Max Reasoning)Z.AI
9.9100%
9.9 is 9.90, and 0.90 > 0.11 — the tenths digit (9) beats the hundredths comparison (11 vs 90) where the trap lives.
Right
- Nemotron 3.5 LightningNVIDIA
9.1199%
9.11 has a larger tenths digit than 9.9, so it is greater when compared as written.
Wrong
- Claude Sonnet 5 (Low Reasoning)Anthropic
9.9100%
As decimals, 9.9 = 9.90 > 9.11 — nine tenths beats one tenth plus one hundredth, no contest.
Right
- Claude Fable 5.1 (Low Reasoning)Anthropic
9.9100%
9.9 is 9.90, and 90 hundredths beats 11 hundredths — decimals aren't version numbers.
Right
- Seed 2.1 TurboByteDance
9.9100%
Comparing digit by digit after the decimal: the first digit of 9.9 is 9, while the first digit of 9.11 is 1, so 9.9 is larger.
Right
- Granite 4.2 8BIBM
9.9100%
9.9 = 9.90 > 9.11; clearly larger.
Right
- Gemini 3.1 Pro Preview (High Reasoning)Google
9.9100%
9.9 is equivalent to 9.90, making it clearly larger than 9.11 since 90 is greater than 11.
Right
- Qwen3.7 FlashQwen
9.9100%
In decimal comparison, 9.9 is greater than 9.11 because 9 is larger than 1 in the tenths place.
Right
- Grok 4.20xAI
9.990%
9.9 is literally 9.90 which is nearly a full unit bigger than 9.11; the decimal trap fools people every time.
Right
- DeepSeek V4 FlashDeepSeek
9.9100%
9.9 = 9.90, which beats 9.11 — the extra digit after the decimal point doesn't make 9.11 larger.
Right
- Parallel LiteParallel
9.9100%
Comparing the tenths place, 9.9 equals 9.90 which has 9 tenths, making it larger than 9.11 which only has 1 tenth.
Right
- Grok 4.3xAI
9.980%
9.9 = 9.90 > 9.11.
Right
- Granite 4.0 MicroIBM
9.9100%
9.9 has a higher tenths place digit than 9.11.
Right
- Gemini 3.1 Flash-Lite (Minimal Reasoning)Google
9.9100%
9.9 is equivalent to 9.90, which is clearly greater than 9.11 when comparing the tenths place.
Right
- Solar Pro 4Upstage
9.9100%
9.9 equals 9.90, plainly larger than 9.11.
Right
- Mercury 2.5Inception
9.9100%
9.9 is ninety-nine tenths, while 9.11 is only eleven hundredths beyond nine, so 9.9 is the larger number.
Right
- GPT-6 Astra (Medium Reasoning)OpenAI
9.9100%
9.9 equals 9.90, which is greater than 9.11.
Right
- Kimi K3Moonshot
9.9100%
9.9 is bigger because 9.90 > 9.11; decimal places don’t make .11 larger than .9.
Right
- Nemotron 3 UltraNVIDIA
9.9100%
9.9 equals 9.90, which is 0.79 greater than 9.11.
Right
- Parallel SpeedParallel
9.9100%
Comparing tenths shows 9.9 is greater because nine-tenths is larger than one-tenth (9.90 vs 9.11).
Right
- MiniMax M3MiniMax
9.9100%
9.9 = 9.90, which is greater than 9.11 — compare the hundredths place: 0 vs 1, wait actually 9.90 vs 9.11, 9.9 wins easily.
Right
- Mistral Medium 3.5Mistral
9.9100%
9.9 is 9 + 0.9, which is greater than 9 + 0.11.
Right
- Muse Spark 1.2 (Minimal Reasoning)Meta
9.9100%
9.9 equals 9.90 which is clearly greater than 9.11 — no version-number trick.
Right
- Sabiazinho 4Maritaca AI
9.9100%
9.9 has a larger whole‑part (9) and a bigger decimal value (0.9 vs 0.11).
Right
- Mistral Medium 3.1Mistral
9.9100%
9.9 is 9 + 0.9, which is greater than 9 + 0.11.
Right
- Sonar ProPerplexity
9.9100%
Compare digit by digit: ones are equal, but in the tenths place 9 > 1, so 9.9 is larger than 9.11.
Right
- MiMo V2.5Xiaomi
9.9100%
9.9 is 9 and 9/10ths while 9.11 is 9 and 11/100ths — nine-tenths is bigger than eleven-hundredths.
Right
- Hy4 PreviewTencent
9.9100%
9.9 means 9.90, and 90 hundredths beats 11 hundredths — decimal place value, not string length, decides it.
Right
- MiniMax M2.5 (Reasoning)MiniMax
9.9100%
9.9 minus 9.11 equals 0.79, so 9.9 is clearly the larger number.
Right
- Nova 2 LiteAmazon
9.9100%
9.9 is larger because the tenths place (9) is greater than 9.11's tenths place (1).
Right
- DeepSeek V4 Pro 0813DeepSeek
9.9100%
9.9 is 9.90, and 90 hundredths beats 11 hundredths.
Right
- Claude Opus 5 (Low Reasoning)Anthropic
9.999%
As decimals, 9.9 is 9.90 and 9.90 > 9.11 — the tenths digit settles it, 9 beats 1.
Right
- Gemma 4 31BGoogle
9.9100%
9.9 is equivalent to 9.90, which is numerically greater than 9.11.
Right
- Gemini 3.5 Flash-Lite (Minimal Reasoning)Google
9.9100%
Nine point nine equals nine point nine zero, which is greater than nine point one one.
Right
- Nemotron 3 SuperNVIDIA
9.9100%
9.9 is greater because 9 + 0.9 > 9 + 0.11, so 0.9 > 0.11.
Right
- gpt-oss-20b (Low Reasoning)OpenAI
9.9100%
9.9 (nine point nine) is larger than 9.11 (nine point eleven).
Right
- Qwen3.8 2.4T A95B (Minimal Reasoning)Qwen
9.9100%
9.9 equals 9.90, which is greater than 9.11 — these are decimals, not version numbers.
Right
- Seed 2.0 MiniByteDance
9.9100%
Comparing tenths places: 1 vs 9, so 9.9 is larger than 9.11.
Right
- Grok 4.5 (High Reasoning)xAI
9.9100%
9.9 equals 9.90, which is greater than 9.11 — the tenths place decides it (9 > 1).
Right
- Kimi K2.6Moonshot
9.9100%
9.9 = 9.90, which is greater than 9.11 by 0.79; this is the classic "9.11 vs 9.9" decimal trap that fooled many in 2024.
Right
- InklingThinking Machines
9.9
Right
- Aion-RP 1.0 (8B)Aion Labs
9.9100%
9.9 is equal to 99/10, which is greater than 11/10 or 9.11. Therefore, 9.9 is larger than 9.11.
Right
- Parallel BaseParallel
9.9100%
Comparing the tenths place, 9.9 (or 9.90) has a 9 while 9.11 has a 1, making 9.9 the larger number.
Right
- Solar Pro 3Upstage
9.9100%
9.9’s hundredths digit (9) beats 1 in 9.11, so it’s numerically larger.
RightSearched
- DeepSeek V4.1 FlashDeepSeek
9.999%
Decimals aren't dates: 9.9 = 9.90, which beats 9.11 by 0.79.
Right
- GLM-4.7Z.AI
9.9100%
Decimal comparison: 9.9 = 9.90, which beats 9.11 at the tenths place (9 > 1).
Right
- GPT-5.6 LunaOpenAI
9.9100%
Writing both with two decimal places gives 9.90, which is greater than 9.11.
Right
- GLM-4.7 FlashZ.AI
9.9100%
9.9 = 9.90, which is greater than 9.11.
Right
- LongCat 2.0Meituan
9.9100%
9.9 is bigger because 9.11 means 9 + 11/100, while 9.9 means 9 + 9/10 = 9.90, and 9.90 > 9.11.
Right
- SonarPerplexity
9.999%
Compare decimals as \(9.11\) vs \(9.90\); since \(9.90 > 9.11\), 9.9 is bigger.
Right
- Mistral Small 3Mistral
9.9100%
9.9 is nine and nine-tenths; 9.11 is nine and eleven-hundredths.
Right
- Sonar Reasoning ProPerplexity
9.9100%
9.9 is 9.90, and a 0.9 fractional part beats 0.11, so it's clearly larger.
Right
- Nova LiteAmazon
9.9100%
9.9 is larger than 9.11.
Right
- Qwen3.8 Max 0902 (Minimal Reasoning)Qwen
9.999%
Decimals compare place by place — 9 tenths beats 1 tenth, so 9.9 > 9.11 no matter how many extra digits follow.
Right
- Qwen3.8 27BQwen
9.9100%
9.9 = 9.90, so after the decimal 90 > 11 — this is decimal arithmetic, not file sizes.
Right
- Aion 3.0 (Reasoning)Aion Labs
9.9100%
9.9 is 9.90 in disguise — same whole number, and 90 hundredths beats 11 hundredths.
Right
- GPT-5.6 SolOpenAI
9.9100%
As decimals, 9.9 equals 9.90, which is greater than 9.11.
Right
- Laguna S 2.1Poolside
9.9100%
On the number line, 9.9 is farther right than 9.11, so 9.9 is the larger value.
Right
- Qwen3.8 FlashQwen
9.9100%
Same whole number, so compare the tenths: 9 is more than 1, making 9.9 bigger — 9.11 only wins if you mistake it for a version number or a date.
Right
- gpt-oss-120b (Low Reasoning)OpenAI
9.9100%
9.9 is numerically greater than 9.11.
Right
- Llama 4 ScoutMeta
9.9100%
9.9 is clearly larger than 9.11 because 9.9 equals 9 and 90 hundredths, while 9.11 equals 9 and 11 hundredths.
Right
- GPT-5.6 TerraOpenAI
9.9100%
\(9.9 = 9.90\), and \(9.90 > 9.11\).
Right
- Claude Haiku 4.5Anthropic
9.9100%
9.9 = 9.90, and 90 hundredths is greater than 11 hundredths.
Right
- Llama 4 MaverickMeta
9.11100%
9.11 is greater than 9.9 because 9.11 has a larger hundredths value than 9.9 when compared directly as 9.11 and 9.90.
Wrong
- Grok 4.6 (High Reasoning)xAI
9.9100%
9.9 equals 9.90, and 9.90 is 0.79 larger than 9.11; decimal places are tenths and hundredths, not software versions.
Right
- Aion 2.0 (Reasoning)Aion Labs
9.9100%
9.9 is 9.90, which is larger than 9.11 when comparing decimal tenths.
Right
- Ling 3.0 FlashInclusionAI
9.9100%
9.9 is 9 and 9 tenths, while 9.11 is 9 and 11 hundredths — 0.9 > 0.11, so 9.9 wins.
Right
- GLM-5.2Z.AI
9.9100%
9.9 = 9.90 beats 9.11 because 90 hundredths is more than 11 hundredths.
Right
- Sabiá 4Maritaca AI
9.9100%
9.9 equals 9.90, which is greater than 9.11 because 90 hundredths beat 11 hundredths.
Right
- PUUnion AlphaUndisclosed maker
9.9100%
As decimals, 9.9 is 9.90, which beats 9.11 — the version-number trap doesn't apply here.
Right
AI consensus
95%
9.9
75 of 79 models
Models 79
Labs 28
Searched 1
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Settled · what actually happened
9.9
75 of 79 AIs got it right.
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