Llama 3.1 8B Instruct vs Mixtral 8×7B Instruct
Llama 3.1 8B Instruct vs Mixtral 8×7B Instruct: Llama 3.1 8B Instruct is cheaper by 64% on average. Llama 3.1 8B Instruct from OVHcloud AI (131,000-token context, tool calls) vs. Mixtral 8×7B Instruct from Perplexity (4,096-token context). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.
Side-by-side cost
Live workload comparison
Same workload run through both models. The cheaper one is highlighted.
3,000
0131,000
400
0131,000
5,000
01,000,000
At this workload, Mixtral 8×7B Instruct is 5% cheaper than Llama 3.1 8B Instruct — a savings of $2.74/month ($32.87/year).
Crossover: Mixtral 8×7B Instruct is cheaper when output/input ≤ 0.17 (input-heavy workloads — RAG, retrieval). Llama 3.1 8B Instruct wins above (long-form generation).
Current workload ratio: 0.13 (400/3000)
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
model: mixtral-8x7b-instruct
provider: perplexity
fallback:
model: llama-3-1-8b-instruct
provider: ovhcloud
shadow: { sample_rate: 0.05 } # mirror 5% of traffic to compare quality live| Llama 3.1 8B Instruct | Mixtral 8×7B Instruct | |
|---|---|---|
| Input price | $0.1000/M | $0.0700/M |
| Output price | $0.1000/M | $0.280/M |
| Context window | 131,000 | 4,096 |
| Max output | 131,000 | 4,096 |
| Function calling | ✓ | — |
| Vision | — | — |
| Audio input | — | — |
| Reasoning | — | — |
| Prompt caching | — | — |
| Structured output | ✓ | — |
| Pricing verified | May 12, 2026 | May 12, 2026 |