Directory · Model comparison
Llama 3.1 8B Instruct vs Llama 3.3 70B Instruct
Side-by-side API economics and benchmarks. Per-1M input and output rates, context window, and verified metrics.
Tale of the tape
Head-to-head specs pulled from each model profile.
| Metric | Llama 3.1 8B Instruct | Llama 3.3 70B Instruct |
|---|---|---|
| Input cost / 1M | $0.02 | $0.10 |
| Output cost / 1M | $0.03 | $0.32 |
| Context window | 128,000 tokens | 128,000 tokens |
| MMLU score | 69.4% | 86% |
Cost verdict
Enter monthly input and output volumes to see total cost savings.
Llama 3.1 8B Instruct
- Input: 1M × $0.02 = $0.02
- Output: 1M × $0.03 = $0.03
- Total
- $0.05
Llama 3.3 70B Instruct
- Input: 1M × $0.10 = $0.10
- Output: 1M × $0.32 = $0.32
- Total
- $0.42
Total cost savings
$0.37
Llama 3.1 8B Instruct saves $0.37 per month vs the other model at this volume.
Model routing savings
Uses this page's verified rates. Llama 3.3 70B Instruct is the premium route (higher combined per-1M cost); Llama 3.1 8B Instruct handles routine traffic.
All premium
Llama 3.3 70B Instruct
$21.00
100% of input and output on the premium route
Routed stack
80% → Llama 3.1 8B Instruct
20% → Llama 3.3 70B Instruct
$6.20
- Routine slice
- $2.00
- Premium slice
- $4.20
Monthly savings
$14.80
70.5% lower
Rates pulled from this page's model database entries (llama-3-3-70b-instruct, llama-3-1-8b-instruct) — same per-1M input/output figures as Tale of the tape. Production routing needs quality gates and monitoring.
Related comparisons
More head-to-head model matchups.