Safety · xAI

Grok 3 Max on TruthfulQA: score, rank and what it means

Grok 3 Max scores 86.7 on TruthfulQA, placing it #42 of 600 models in the index. The benchmark average is 73.6 and the leader is GPT-5.1 Max at 91.1.

Score
86.7
0–100 scale
Rank
#42
of 600
Percentile
93th
within the index
Benchmark avg
73.6
all models
Leader
91.1
GPT-5.1 Max
Gap to leader
4.4
points

Score distribution

The chart shows the top 10 models on TruthfulQA, with Grok 3 Max highlighted. Longer bars mean higher scores.

GPT-5.1 Max 91.1
Gemini 3 Pro Reasoning 90.3
GPT-5.1 Reasoning 90.0
GPT-5.2 Pro 90.0
GPT-5.2 89.7
Gemini 3 Pro Max 89.6
Grok 4 Reasoning 89.4
Qwen3-Max Max 89.3
GPT-5.1 89.2
GPT-5.1 Turbo 89.2

Top 10 leaderboard

#ModelProviderContextInput / 1MAvg score
1 GPT-5.1 Max OpenAI 2000000 $20.50 87.9
2 Gemini 3 Pro Reasoning Google DeepMind 200000 $19.69 87.5
3 GPT-5.1 Reasoning OpenAI 400000 $20.27 88.3
4 GPT-5.2 Pro OpenAI 2000000 $21.32 89.6
5 GPT-5.2 OpenAI 2000000 $19.71 88.0
6 Gemini 3 Pro Max Google DeepMind 2000000 $20.57 87.9
7 Grok 4 Reasoning xAI 2000000 $19.67 87.8
8 Qwen3-Max Max Alibaba Cloud 400000 $18.53 85.9
9 GPT-5.1 OpenAI 2000000 $19.01 86.0
10 GPT-5.1 Turbo OpenAI 2000000 $19.19 86.1

What this score means

On TruthfulQA, Grok 3 Max sits at #42 of 600. The leader, GPT-5.1 Max, scores 91.1, so the gap to the top is 4.4 points. The median model in this index scores 76.3, which puts Grok 3 Max above the midpoint.

xAI models average 83.3 on this benchmark. Grok 3 Max is 3.4 points above that provider line, so it is a stronger result than the average xAI model.

Among frontier models, the average is 86.9. Grok 3 Max is 0.2 points below that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.

Read a 86.7 as a relative signal, not an absolute guarantee. Benchmark scores depend on prompt format, evaluation harness and contamination controls. Use this page to narrow the shortlist, then test the model on your own data.

Price context

At $17.66 per million input tokens, Grok 3 Max is above the median input price of $4.00 across the 600 models scored on TruthfulQA. The models immediately around it in the ranking are shown below so you can compare score and price together.

ModelProviderContextInput / 1MAvg score
Claude Opus 4.5 Vision Anthropic 200000 $17.70 85.9
GPT-5.1 Pro OpenAI 200000 $19.77 87.8
GPT-5.1 Vision OpenAI 400000 $17.76 84.8
Claude Opus 4.5 Pro Anthropic 200000 $20.98 89.1
Grok 3 Max xAI 2000000 $17.66 85.9
Gemini 3 Flash Reasoning Google DeepMind 128000 $17.05 83.7
o3 Reasoning OpenAI 200000 $18.07 85.3

Other benchmarks for Grok 3 Max

BenchmarkScoreRankPercentileRelative
MMLU-Pro 87.3 30 95th
GPQA Diamond 80.9 46 92th
SWE-bench Verified 73.6 60 90th
HumanEval 91.9 25 96th
MATH-500 91.9 23 96th
AIME 2025 86.6 23 96th
LiveCodeBench 79.7 47 92th
IFEval 92.6 27 96th
HellaSwag 91.8 43 93th
MMMU 82.3 28 95th
Arena Elo 1475.8 25 96th

FAQ

What score does Grok 3 Max get on TruthfulQA?

Grok 3 Max scores 86.7 on TruthfulQA in this index. The benchmark average is 73.6 and the top score is 91.1.

How does Grok 3 Max rank on TruthfulQA?

It ranks #42 of 600 models, in the 93rd percentile. The leader is GPT-5.1 Max at 91.1.

Is Grok 3 Max good at TruthfulQA?

Yes, relative to the index: it is above the median and inside the top half of scores. The result should be read alongside its price and context window.

How is the TruthfulQA score calculated?

TruthfulQA is a safety benchmark. Scores in this index are modelled estimates on a 0–100 scale (or Elo for Arena), derived from capability tier and benchmark difficulty. They are not official leaderboard results.

What does Grok 3 Max cost?

Grok 3 Max costs $17.66 per million input tokens and $89.12 per million output tokens.

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