Compare · ModelsLive · 2 picked · head to head
Llama 3.1 8B Instruct vs Gemini 2.5 Flash
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Gemini 2.5 Flash wins on 4/4 benchmarks
Gemini 2.5 Flash wins 4 of 4 shared benchmarks. Leads in arena · knowledge · math.
Category leads
arena·Gemini 2.5 Flashknowledge·Gemini 2.5 Flashmath·Gemini 2.5 Flashcoding·Gemini 2.5 Flash
Hype vs Reality
Attention vs performance
Llama 3.1 8B Instruct
#199 by perf·no signal
Gemini 2.5 Flash
#144 by perf·#14 by attention
Best value
Llama 3.1 8B Instruct
27.4x better value than Gemini 2.5 Flash
Llama 3.1 8B Instruct
782.9 pts/$
$0.04/M
Gemini 2.5 Flash
28.6 pts/$
$1.40/M
Vendor risk
Who is behind the model
Meta AI
$1.50T·Tier 1
Google DeepMind
$4.00T·Tier 1
Head to head
4 benchmarks · 2 models
Llama 3.1 8B InstructGemini 2.5 Flash
Chatbot Arena Elo · Overall
Gemini 2.5 Flash leads by +200.0
Llama 3.1 8B Instruct
1211.0
Gemini 2.5 Flash
1411.0
Balrog
Gemini 2.5 Flash leads by +18.4
Balrog · benchmarks AI agents on text-based adventure games, testing language understanding, strategic planning, and long-horizon reasoning.
Llama 3.1 8B Instruct
15.1
Gemini 2.5 Flash
33.5
OTIS Mock AIME 2024-2025
Gemini 2.5 Flash leads by +70.6
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
Llama 3.1 8B Instruct
2.4
Gemini 2.5 Flash
73.0
WeirdML
Gemini 2.5 Flash leads by +39.2
WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns.
Llama 3.1 8B Instruct
1.7
Gemini 2.5 Flash
41.0
Full benchmark table
| Benchmark | Llama 3.1 8B Instruct | Gemini 2.5 Flash |
|---|---|---|
Chatbot Arena Elo · Overall | 1211.0 | 1411.0 |
Balrog Balrog · benchmarks AI agents on text-based adventure games, testing language understanding, strategic planning, and long-horizon reasoning. | 15.1 | 33.5 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 2.4 | 73.0 |
WeirdML WeirdML · tests models on unusual and adversarial machine learning tasks that require creative problem-solving beyond standard patterns. | 1.7 | 41.0 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.02 | $0.05 | 16K tokens (~8 books) | $0.28 | |
| $0.30 | $2.50 | 1.0M tokens (~524 books) | $8.50 |
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