Claude Sonnet 4.6 vs Llama 4 Scout

Anthropic · US  |  Meta · US · Updated June 2026

Quick verdict

Pick Claude Sonnet 4.6 for best value in the claude family or everyday professional work. Pick Llama 4 Scout for largest advertised context (10m) or open weights, single-gpu friendly. Choose Llama 4 Scout if you need self-hosting or data privacy; Claude Sonnet 4.6 if you want a managed API.

Claude Sonnet 4.6 (Anthropic) and Llama 4 Scout (Meta) are two of the models people most often weigh against each other in 2026. Claude Sonnet 4.6 is opus-class quality on most tasks at roughly 60% lower cost — the default workhorse. Llama 4 Scout is the 10M-token open-weight giant — enormous on paper, but usable recall is far smaller. They diverge most on price, context window and open vs. closed weights — each quantified below from the models' real specs.

Key differences at a glance

Side-by-side specs

SpecClaude Sonnet 4.6Llama 4 Scout
ProviderAnthropic (US) Meta (US)
ReleasedFebruary 2026 April 2025
Context window1M (~1,500 pages) 10M (~15,000 pages)
Price (in/out)$3/$15 per 1M tokens Open weight (self-host / free)
Open weight?No — API only Yes — self-hostable
Modalitiestext, image, code text, image, code
SWE-Bench Verified80% Not published
MRCR v2 @ 1MNot published 15%

Who wins what

Best value in the Claude family

Claude Sonnet 4.6

A core design strength of Claude Sonnet 4.6.

Everyday professional work

Claude Sonnet 4.6

A core design strength of Claude Sonnet 4.6.

Long-document analysis

Claude Sonnet 4.6

A core design strength of Claude Sonnet 4.6.

Largest advertised context (10M)

Llama 4 Scout

A core design strength of Llama 4 Scout.

Open weights, single-GPU friendly

Llama 4 Scout

A core design strength of Llama 4 Scout.

Self-hosted, data-private deployment

Llama 4 Scout

A core design strength of Llama 4 Scout.

Lowest cost at scale

Llama 4 Scout

At Open weight (self-host / free), it is the cheaper of the two — the gap dominates the bill on high-volume workloads.

Largest single-prompt input

Llama 4 Scout

Its 10M window is about 10× larger, fitting roughly 15,000 pages in one prompt.

Which should you pick?

A cost-sensitive startup shipping high volume

Llama 4 Scout

At Open weight (self-host / free) it undercuts Claude Sonnet 4.6, and on millions of tokens that margin decides the monthly bill.

Someone analysing very long documents or codebases

Llama 4 Scout

Larger 10M window fits more in one prompt.

A team with data-privacy or self-hosting needs

Llama 4 Scout

Open weights let you run it on your own hardware; Claude Sonnet 4.6 is API-only.

Anyone whose priority is best value in the claude family

Claude Sonnet 4.6

It is specifically built for that.

Anyone whose priority is largest advertised context (10m)

Llama 4 Scout

That is its strongest area.

Claude Sonnet 4.6: where it fits

Opus-class quality on most tasks at roughly 60% lower cost — the default workhorse. Released February 2026 by Anthropic, it is built for best value in the Claude family, everyday professional work, long-document analysis, and coding at lower cost than Opus.

Its trade-offs are real: trails Opus on the hardest agentic tasks, and not an open-weight option. At $3 in / $15 out per million tokens, it sits in the mid price band.

Llama 4 Scout: where it fits

The 10M-token open-weight giant — enormous on paper, but usable recall is far smaller. Released April 2025 by Meta, it is built for largest advertised context (10M), open weights, single-GPU friendly, self-hosted, data-private deployment, and retrieval over very long inputs.

Its trade-offs: effective recall degrades far below 10M, and ~15% on long-context multi-needle reasoning. As an open-weight model, its running cost is your own hardware rather than a per-token fee.

The bottom line for this matchup

The defining split here is open vs. closed. Llama 4 Scout gives you weights you control — self-host it, fine-tune it, keep data in-house, pay only for hardware. Claude Sonnet 4.6 gives you a managed, always-updated API with no infrastructure to run. Teams with GPUs, privacy requirements, or huge volume often favour the open model; teams that want zero ops and the latest capabilities favour the closed one. Capability is close enough that this operational question, not the benchmark, usually decides it.

Want both Claude Sonnet 4.6 and Llama 4 Scout without two subscriptions? LumiChats gives you these plus 40+ models under one ₹69/day pass (about $1/day) — draft with one, cross-check with the other.

See pricing

Frequently asked questions

Is Claude Sonnet 4.6 or Llama 4 Scout better for coding?

Public SWE-Bench figures are not available for Llama 4 Scout, so the honest test is your own repository — run an identical real bug through both. By design, Claude Sonnet 4.6 leans toward best value in the claude family while Llama 4 Scout leans toward largest advertised context (10m), and that positioning usually predicts which feels better on your codebase.

Which is cheaper, Claude Sonnet 4.6 or Llama 4 Scout?

Llama 4 Scout is open-weight, so self-hosting means no per-token fee (you pay for hardware instead), while Claude Sonnet 4.6 is API-metered at $3/$15 per 1M tokens. For most teams without GPUs, the API model is cheaper to start; at very high volume, self-hosting can win.

Which has the bigger context window?

Llama 4 Scout — 10M vs 1M, about 10× larger. Useful only if the model actually reasons over the full window, which not all do.

Can I use both Claude Sonnet 4.6 and Llama 4 Scout together?

Yes — a multi-model platform like LumiChats gives you Claude Sonnet 4.6, Llama 4 Scout and 40+ others under one ₹69/day pass (about $1/day), so you can draft with one and cross-check with the other instead of buying two subscriptions.

Which is newer, Claude Sonnet 4.6 or Llama 4 Scout?

Claude Sonnet 4.6 — released February 2026, about 11 months after Llama 4 Scout.

Related comparisons

Specifications and benchmarks reflect publicly reported figures as of June 2026 and may change as providers release updates. Always verify on your own workload.