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Compare / head-to-head

Llama 4 ScoutvsQwen3.5 397B-A17B

Qwen3.5 397B-A17B leads 2 of 2 shared benchmarks. Llama 4 Scout has the larger context window (10M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
0 – 2
Qwen3.5 397B-A17B leads
Cheaper per token
list price, input + output
Larger context
Llama 4 Scout
10M tokens
Provider uptime (30d)
— · —
Meta · Qwen
Llama 4 Scout
Meta · released 2025-04-05
textvision
Context
10M
Max out
Input /1M
Output /1M
Cached /1M
Scores
2 · 2 core
Qwen3.5 397B-A17B
Qwen · released 2026-02-15
textvision
Context
262K
Max out
Input /1M
$0.172
Output /1M
$1.03
Cached /1M
Scores
8 · 7 core
Quality

Benchmark matrix

BenchmarkLlama 4 ScoutQwen3.5 397B-A17BΔEdge
Reported by both · 2
GPQA Diamond57.2% 88.4% -31.2 ptQwen3.5 397B-A17B
MMLU-Pro74.3% 87.8% -13.5 ptQwen3.5 397B-A17B
Only Llama 4 Scout reports · 0
Llama 4 Scout reports nothing Qwen3.5 397B-A17B does not.
Only Qwen3.5 397B-A17B reports · 5
SWE-bench Verifiednot reported76.4%
AIME 2026not reported94.2% matharena
LMArena Elonot reported1438.3
FrontierMath Tiers 1-3 v2 (Epoch AI run)not reported29.5% epoch
OTIS Mock AIME 2024-2025 (Epoch AI run)not reported88.9% epoch
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Llama 4 Scout minus Qwen3.5 397B-A17B in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecLlama 4 ScoutQwen3.5 397B-A17BEdge
Context window10M tokens262K tokensLlama 4 Scout
Max output
Input price / 1M$0.172
Output price / 1M$1.03
Cached input / 1M
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$1.2
Modalitiestext · visiontext · visionTie
Released2025-04-052026-02-15
Cited benchmark scores28
Reliability

Provider status

All providers
More matchups

Qwen3.5 397B-A17B vs …

Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run Llama 4 Scout and Qwen3.5 397B-A17B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.