Grok 4.1 Fast vs Llama 4 Scout
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
xAI · Nov 2025
A 2M-token context window for $0.20 per million input tokens — the cheapest long-context frontier offering anywhere.
Meta · Apr 2025
A 10M-token context window — still the largest ever shipped — in a 109B MoE that fits on a single H100.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. Grok 4.1 Fast is about 1.0x cheaper per blended million tokens (3:1 input:output mix). Llama 4 Scout also takes 10M of context versus 2M for Grok 4.1 Fast. And Llama 4 Scout is open-weights (Llama 4 Community License), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
Specs & pricing
| Grok 4.1 Fast | Llama 4 Scout | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $0.2 | $0.18 |
| Output price / 1M | $0.5 | $0.59 |
| Context window | 2M | 10M |
| Max output | — | — |
| Open weights | no | yes (Llama 4 Community License) |
| Reasoning model | yes | no |
| Multimodal input | text, image | text, image |
| Knowledge cutoff | Nov 2025 | Aug 2024 |
| Released | Nov 2025 | Apr 2025 |
| Example monthly cost* | $2.75 | $2.68 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Grok 4.1 Fast or Llama 4 Scout?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. Grok 4.1 Fast is about 1.0x cheaper per blended million tokens (3:1 input:output mix). Llama 4 Scout also takes 10M of context versus 2M for Grok 4.1 Fast. And Llama 4 Scout is open-weights (Llama 4 Community License), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
- Which is cheaper, Grok 4.1 Fast or Llama 4 Scout?
- Grok 4.1 Fast costs $0.2/$0.5 per million input/output tokens, while Llama 4 Scout costs $0.18/$0.59. For a typical workload of 10M input and 1.5M output tokens per month, that's $2.75 versus $2.68.
- Which model is better for coding, Grok 4.1 Fast or Llama 4 Scout?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.