GPT-5.1 vs Llama 4 Scout
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
OpenAI · Nov 2025
A November 2025 update to GPT-5 with adaptive reasoning that spends thinking tokens only when a task needs them.
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
GPT-5.1 wins 1 of the 1 benchmarks these models share, against 0 for Llama 4 Scout. On price the gap is dramatic: Llama 4 Scout works out roughly 12x cheaper per blended million tokens. Llama 4 Scout also takes 10M of context versus 400K for GPT-5.1. 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.
Benchmark head-to-head 1–0
Specs & pricing
| GPT-5.1 | Llama 4 Scout | |
|---|---|---|
| modhub Index | 59.6 | — |
| Input price / 1M | $1.25 | $0.18 |
| Output price / 1M | $10 | $0.59 |
| Context window | 400K | 10M |
| Max output | 128K | — |
| Open weights | no | yes (Llama 4 Community License) |
| Reasoning model | yes | no |
| Multimodal input | text, image | text, image |
| Knowledge cutoff | Sep 2024 | Aug 2024 |
| Released | Nov 2025 | Apr 2025 |
| Example monthly cost* | $27.50 | $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, GPT-5.1 or Llama 4 Scout?
- GPT-5.1 wins 1 of the 1 benchmarks these models share, against 0 for Llama 4 Scout. On price the gap is dramatic: Llama 4 Scout works out roughly 12x cheaper per blended million tokens. Llama 4 Scout also takes 10M of context versus 400K for GPT-5.1. 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, GPT-5.1 or Llama 4 Scout?
- GPT-5.1 costs $1.25/$10 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 $27.50 versus $2.68.
- Which model is better for coding, GPT-5.1 or Llama 4 Scout?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.