Compare · ModelsLive · 2 picked · head to head
phi-3-small 7.4B vs Llama 3 8B Instruct
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
phi-3-small 7.4B wins on 5/6 benchmarks
phi-3-small 7.4B wins 5 of 6 shared benchmarks. Leads in knowledge.
Category leads
knowledge·phi-3-small 7.4B
Hype vs Reality
Attention vs performance
phi-3-small 7.4B
#23 by perf·no signal
Llama 3 8B Instruct
#182 by perf·no signal
Best value
Llama 3 8B Instruct
phi-3-small 7.4B
—
no price
Llama 3 8B Instruct
880.0 pts/$
$0.04/M
Vendor risk
Who is behind the model
Microsoft
$3.00T·Big Tech
Meta AI
$1.50T·Tier 1
Head to head
6 benchmarks · 2 models
phi-3-small 7.4BLlama 3 8B Instruct
ANLI
phi-3-small 7.4B leads by +1.2
ANLI (Adversarial NLI) · adversarially constructed natural language inference dataset where each round targets weaknesses found in previous model generations.
phi-3-small 7.4B
37.1
Llama 3 8B Instruct
36.0
ARC AI2
phi-3-small 7.4B leads by +10.5
AI2 Reasoning Challenge · tests grade-school level science knowledge with multiple-choice questions requiring reasoning beyond simple retrieval.
phi-3-small 7.4B
87.6
Llama 3 8B Instruct
77.1
MMLU
phi-3-small 7.4B leads by +9.2
Massive Multitask Language Understanding · 57 subjects spanning STEM, humanities, social sciences, and more. The standard benchmark for broad knowledge.
phi-3-small 7.4B
67.6
Llama 3 8B Instruct
58.4
OpenBookQA
phi-3-small 7.4B leads by +7.2
OpenBookQA · science questions that require combining a given core fact with broad common knowledge, mimicking an open-book exam setting.
phi-3-small 7.4B
84.0
Llama 3 8B Instruct
76.8
TriviaQA
Llama 3 8B Instruct leads by +9.6
TriviaQA · reading comprehension benchmark with trivia questions, requiring models to find and reason over evidence from provided documents.
phi-3-small 7.4B
58.1
Llama 3 8B Instruct
67.7
Winogrande
phi-3-small 7.4B leads by +11.6
WinoGrande · large-scale commonsense reasoning benchmark where models must resolve ambiguous pronouns in carefully constructed sentence pairs.
phi-3-small 7.4B
63.0
Llama 3 8B Instruct
51.4
Full benchmark table
| Benchmark | phi-3-small 7.4B | Llama 3 8B Instruct |
|---|---|---|
ANLI ANLI (Adversarial NLI) · adversarially constructed natural language inference dataset where each round targets weaknesses found in previous model generations. | 37.1 | 36.0 |
ARC AI2 AI2 Reasoning Challenge · tests grade-school level science knowledge with multiple-choice questions requiring reasoning beyond simple retrieval. | 87.6 | 77.1 |
MMLU Massive Multitask Language Understanding · 57 subjects spanning STEM, humanities, social sciences, and more. The standard benchmark for broad knowledge. | 67.6 | 58.4 |
OpenBookQA OpenBookQA · science questions that require combining a given core fact with broad common knowledge, mimicking an open-book exam setting. | 84.0 | 76.8 |
TriviaQA TriviaQA · reading comprehension benchmark with trivia questions, requiring models to find and reason over evidence from provided documents. | 58.1 | 67.7 |
Winogrande WinoGrande · large-scale commonsense reasoning benchmark where models must resolve ambiguous pronouns in carefully constructed sentence pairs. | 63.0 | 51.4 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| phi-3-small 7.4B | — | — | — | — |
| Llama 3 8B Instruct | $0.03 | $0.04 | 8K tokens (~4 books) | $0.33 |
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