Safety · Cerebras

Llama 3.1 Cerebras 8B on TruthfulQA: score, rank and what it means

Llama 3.1 Cerebras 8B scores 64.1 on TruthfulQA, placing it #468 of 600 models in the index. The benchmark average is 73.6 and the leader is GPT-5.1 Max at 91.1.

Score
64.1
0–100 scale
Rank
#468
of 600
Percentile
22th
within the index
Benchmark avg
73.6
all models
Leader
91.1
GPT-5.1 Max
Gap to leader
27.0
points

Score distribution

The chart shows the top 10 models on TruthfulQA, with Llama 3.1 Cerebras 8B 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 Cerebras 8B sits at #468 of 600. The leader, GPT-5.1 Max, scores 91.1, so the gap to the top is 27.0 points. The median model in this index scores 76.3, which puts Llama 3.1 Cerebras 8B below the midpoint.

Cerebras models average 70.4 on this benchmark. Llama 3.1 Cerebras 8B is 6.3 points below that provider line, so it is a weaker result than the average Cerebras model.

Among small open-weight models, the average is 59.9. Llama 3.1 Cerebras 8B is 4.2 points above that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.

Read a 64.1 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 $1.02 per million input tokens, Llama 3.1 Cerebras 8B is below 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
Zephyr Chat Hugging Face 4096 $1.49 61.3
GLM-4.5 7B Zhipu AI 8192 $1.32 60.2
Mistral Large 3 7B Mistral AI 32768 $1.44 61.1
Qwen3-Coder 7B Alibaba Cloud 32768 $1.24 59.6
Llama 3.1 Cerebras 8B Cerebras 32768 $1.02 58.2
Llama 3.3 Groq 7B Groq 16384 $1.01 56.7
Llama 3 Lambda 7B Lambda 8192 $0.84 55.4

Other benchmarks for Llama 3.1 Cerebras 8B

BenchmarkScoreRankPercentileRelative
MMLU-Pro 64.4 462 23th
GPQA Diamond 54.6 470 22th
SWE-bench Verified 41.6 504 16th
HumanEval 60.5 495 18th
MATH-500 60.3 457 24th
AIME 2025 47.2 475 21th
LiveCodeBench 47.0 475 21th
IFEval 68.9 475 21th
HellaSwag 73.4 472 21th
MMMU 57.7 461 23th
Arena Elo 1254.4 483 20th

FAQ

What score does Llama 3.1 Cerebras 8B get on TruthfulQA?

Llama 3.1 Cerebras 8B scores 64.1 on TruthfulQA in this index. The benchmark average is 73.6 and the top score is 91.1.

How does Llama 3.1 Cerebras 8B rank on TruthfulQA?

It ranks #468 of 600 models, in the 22nd percentile. The leader is GPT-5.1 Max at 91.1.

Is Llama 3.1 Cerebras 8B good at TruthfulQA?

It is below the median for this benchmark, so test it carefully before relying on it for this capability. 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 Cerebras 8B cost?

Llama 3.1 Cerebras 8B costs $1.02 per million input tokens and $5.02 per million output tokens.

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