Safety · Meta AI

Llama 3.1 on TruthfulQA: score, rank and what it means

Llama 3.1 scores 78.4 on TruthfulQA, placing it #240 of 600 models in the index. The benchmark average is 73.6 and the leader is GPT-5.1 Max at 91.1.

Score
78.4
0–100 scale
Rank
#240
of 600
Percentile
60th
within the index
Benchmark avg
73.6
all models
Leader
91.1
GPT-5.1 Max
Gap to leader
12.7
points

Score distribution

The chart shows the top 10 models on TruthfulQA, with Llama 3.1 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, Llama 3.1 sits at #240 of 600. The leader, GPT-5.1 Max, scores 91.1, so the gap to the top is 12.7 points. The median model in this index scores 76.3, which puts Llama 3.1 above the midpoint.

Meta AI models average 72.7 on this benchmark. Llama 3.1 is 5.7 points above that provider line, so it is a stronger result than the average Meta AI model.

Among multimodal models, the average is 80.1. Llama 3.1 is 1.7 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 78.4 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 $4.16 per million input tokens, Llama 3.1 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
Reka Flash Max Reka AI 32768 $11.17 75.9
ERNIE 4.0 Pro Baidu 200000 $12.58 77.5
MiniMax-Text Instruct MiniMax 128000 $4.59 77.7
Gemini 2.5 Pro Mini Google DeepMind 128000 $10.07 74.2
Llama 3.1 Meta AI 200000 $4.16 76.3
Llama 3.1 Cerebras Chat Cerebras 32768 $4.07 76.0
Yi-Large Chat 01.AI 65536 $3.49 73.5

Other benchmarks for Llama 3.1

BenchmarkScoreRankPercentileRelative
MMLU-Pro 78.8 220 63th
GPQA Diamond 69.8 272 55th
SWE-bench Verified 67.9 147 76th
HumanEval 81.8 189 69th
MATH-500 82.8 150 75th
AIME 2025 69.5 268 55th
LiveCodeBench 66.7 258 57th
IFEval 82.3 267 56th
HellaSwag 87.2 166 72th
MMMU 74.2 180 70th
Arena Elo 1407.6 187 69th

FAQ

What score does Llama 3.1 get on TruthfulQA?

Llama 3.1 scores 78.4 on TruthfulQA in this index. The benchmark average is 73.6 and the top score is 91.1.

How does Llama 3.1 rank on TruthfulQA?

It ranks #240 of 600 models, in the 60th percentile. The leader is GPT-5.1 Max at 91.1.

Is Llama 3.1 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 Llama 3.1 cost?

Llama 3.1 costs $4.16 per million input tokens and $15.79 per million output tokens.

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