Meta: Llama 3.1 8B Instruct vs Meta Llama 4 Scout: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Meta: Llama 3.1 8B Instruct (meta-llama/llama-3.1-8b-instruct) vs Meta Llama 4 Scout (llama-4-scout). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Meta: Llama 3.1 8B Instruct (meta-llama/llama-3.1-8b-instruct) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Meta: Llama 3.1 8B Instruct: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.025/1M) or route via asynchronous Batch API for 50% off standard token rates.
Meta Llama 4 Scout (llama-4-scout) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Meta Llama 4 Scout: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.225/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Meta: Llama 3.1 8B Instruct (API ID: meta-llama/llama-3.1-8b-instruct) vs Meta Llama 4 Scout (API ID: llama-4-scout), Meta: Llama 3.1 8B Instruct offers lower standard input pricing at $0.05/1M tokens ($0.08/1M output), while Meta: Llama 3.1 8B Instruct leads in cached prefix economics at $0.025/1M tokens (50% discount). Meta Llama 4 Scout achieves a 140ms faster P90 time-to-first-token latency (140ms vs 280ms).
Auto-discovered via live global telemetry registry.
Enable Prompt Context Caching & Batch API to reduce repeated system prompt input token burn by 50%-97.5%.
| Specification / FinOps Dimension | Meta: Llama 3.1 8B Instruct | Meta Llama 4 Scout | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | meta-llama/llama-3.1-8b-instruct | llama-4-scout | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.05 / $0.08 | $0.45 / $0.65 | Meta: Llama 3.1 8B Instruct |
| Cache Read Price (per 1M) | $0.025/1M (50% Off) | $0.225/1M (50% Off) | Meta: Llama 3.1 8B Instruct |
| Context Window / Max Output | 128K In / 115K Out | 400K In / 128K Out | Meta Llama 4 Scout |
| P90 First-Token / Edge Latency | 280ms | 140ms | Meta Llama 4 Scout (-140ms) |
Meta's latest class of model (Llama 3.1) launched with a variety of sizes & flavors. This 8B instruct-tuned version is fast and efficient. It has demonstrated strong performance co
Meta open-weight multimodal MoE model supporting 10M+ extended context on dedicated clusters.
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🦙Switch from Meta: Llama 3.1 8B Instruct to Meta Llama 4 Scout
Meta open-weight multimodal MoE model supporting 10M+ extended context on dedicated clusters. Verified P90 latency of 140ms.