Pairwise benchmark snapshot · Aug 16, 2026

Claude Sonnet 5 vs Llama 4 Scout benchmark

Name: Claude Sonnet 5 vs Llama 4 Scout AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Claude Sonnet 5 (Anthropic) and Llama 4 Scout (Meta) using the latest snapshots we have as of Aug 16, 2026. On preference Elo, Claude Sonnet 5 is ahead by 144 points (1,556 vs 1,412; seed-bootstrap (Aug 16, 2026)). On SWE-bench coding, Claude Sonnet 5 resolves 73.8% versus 52.4% (seed-bootstrap (Aug 16, 2026)). Llama 4 Scout streams faster (155 tok/s) while Llama 4 Scout is the cheaper output token ($0.3/1M). Llama 4 Scout has the larger context window (1.3M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

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Anthropic

Claude Sonnet 5

Anthropic workhorse. Official $2/$10 per 1M tokens made permanent on Aug 10 2026.

Elo 1,556$10/1M out

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Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude Sonnet 5 (5)vsLlama 4 Scout (5)

Claude Sonnet 5: 5W (50%)Overall: Even matchupLlama 4 Scout: 5W (50%)

← Claude Sonnet 5Llama 4 Scout →

Claude Sonnet 5 (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,556vs1,412

Coding Elo

1,562vs1,398

SWE-bench

73.8%vs52.4%

LiveBench

70.4%vs59.6%

GPQA Diamond

82.8%vs71.2%

Claude Sonnet 5: 5WLlama 4 Scout: 0W

Llama 4 Scout (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

118 tok/svs155 tok/s

Time to first token

175 msvs130 ms

Claude Sonnet 5: 0WLlama 4 Scout: 2W

Llama 4 Scout (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$10/1Mvs$0.3/1M

Input price

$2/1Mvs$0.1/1M

Context window

1Mvs1.3M

Claude Sonnet 5: 0WLlama 4 Scout: 3W

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect

Percentile 0–100

Dimensional AdvantageEven 3–3

Preference Elo

Claude Sonnet 5

144 pts advantage

Throughput Speed

Llama 4 Scout

37 tok/s faster

Price Efficiency

Llama 4 Scout

$9.70/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

+10%1,556

EloHigh is better

1,412

Code Elo

High is better

+12%1,562

Code EloHigh is better

1,398

LiveBench

High is better

+18%70.4%

LiveBenchHigh is better

59.6%

SWE-bench

High is better

+41%73.8%

SWE-benchHigh is better

52.4%

GPQA

High is better

+16%82.8%

GPQAHigh is better

71.2%

TTFT

Low is better

175 ms

TTFTLow is better

130 ms+35%

Speed

High is better

118 tok/s

SpeedHigh is better

155 tok/s+31%

In $

Low is better

$2/1M

In $Low is better

$0.1/1M+1900%

Out $

Low is better

$10/1M

Out $Low is better

$0.3/1M+3233%

Context

High is better

ContextHigh is better

1.3M+31%

Interactive Simulator

Workload Cost & Savings Calculator

Simulate monthly production API costs based on published $/1M tokens.

Save up to 96% with Llama 4 Scout

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

Claude Sonnet 5$220.00 / mo

In: $70.00Out: $150.00

Llama 4 Scout$8.00 / mo

In: $3.50Out: $4.50

Estimated Cost Delta

Llama 4 Scout is estimated to save $212.00/month ($2,544/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
Claude Sonnet 5:Pick Claude Sonnet 5 when repo-level coding accuracy is the constraint.
2
Llama 4 Scout:Pick Llama 4 Scout when you are optimizing output cost.
3
Llama 4 Scout:Pick Llama 4 Scout when time-to-first-token matters more than peak Elo.

Recommended Workload Routing

Repo / coding agentsClaude Sonnet 5

Higher SWE-bench (73.8%).

High-volume chatLlama 4 Scout

Lower output list price ($0.3/1M).

Voice / low-latency UILlama 4 Scout

Lower TTFT (130 ms).

Long-document RAGLlama 4 Scout

Larger window (1.3M).

Screenshots / visionClaude Sonnet 5

Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Claude Sonnet 5	Higher SWE-bench (73.8%).
High-volume chat	Llama 4 Scout	Lower output list price ($0.3/1M).
Voice / low-latency UI	Llama 4 Scout	Lower TTFT (130 ms).
Long-document RAG	Llama 4 Scout	Larger window (1.3M).
Screenshots / vision	Claude Sonnet 5	Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).

Related Editorial Dispatches & Benchmark Notes

View all news

compareAug 16, 2026

Haiku 4.5 vs Llama 4 Scout: cheap Claude versus cheap open Llama

$1/$5 hosted Claude vs a cheap long-context open sibling. The alternative-to-Sonnet pair that is honest.

compareAug 10, 2026

Sonnet vs Opus in 2026: same family, different invoice

Usually Sonnet 5 vs Opus 5. Coding delta versus output $/1M. The workhorse question.

priceAug 10, 2026

Claude Sonnet 5 at $2/$10: the 2026 Anthropic workhorse

Aug 10 2026 made the $2/$10 list permanent. Sonnet is the default Claude unless the repo is actually on fire.

launchApr 8, 2026

Llama 4 Scout: long-context open sibling of Maverick

Huge window, cheap hosted lists. The Haiku alternative that is actually open-weight.

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LIVE

Anthropic

Claude Sonnet 5

Elo 1,556

LiveBench70.4%

SWE-bench73.8%

Speed118 tok/s

Output cost$10/1M

Llama 4 Scout

Elo 1,412

LiveBench59.6%

SWE-bench52.4%

Speed155 tok/s

Output cost$0.3/1M

Frequently Asked Questions

Which is better overall, Claude Sonnet 5 or Llama 4 Scout?: Claude Sonnet 5 has the higher preference Elo in our latest snapshot (1,556). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Claude Sonnet 5 or Llama 4 Scout?: Claude Sonnet 5 leads SWE-bench at 73.8% vs 52.4%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: Llama 4 Scout output tokens are $0.3/1M versus $10/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude Sonnet 5 or Llama 4 Scout?: Llama 4 Scout has the lower time-to-first-token (130 ms vs 175 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?: Llama 4 Scout accepts 1.3M tokens versus 1M.
Can I self-host either model?: Llama 4 Scout is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Claude Sonnet 5 and Llama 4 Scout Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Claude Sonnet 5 matchups →|All Llama 4 Scout matchups →

Claude Sonnet 5 vs Claude Sonnet 4.5 (previous sonnet)Llama 4 Scout vs Llama 4 Maverick (previous llama)Claude Opus 4.5 vs Claude Sonnet 5 Claude Opus 4.6 vs Claude Sonnet 5 Claude Opus 4.8 vs Claude Sonnet 5 Claude Fable 5 vs Claude Sonnet 5

Claude Sonnet 5 vs Llama 4 Scout benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude Sonnet 5 (5)vsLlama 4 Scout (5)

Claude Sonnet 5: 5W (50%)Overall: Even matchupLlama 4 Scout: 5W (50%)

← Claude Sonnet 5Llama 4 Scout →

Claude Sonnet 5 (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,556vs1,412

Coding Elo

1,562vs1,398

SWE-bench

73.8%vs52.4%

LiveBench

70.4%vs59.6%

GPQA Diamond

82.8%vs71.2%

Claude Sonnet 5: 5WLlama 4 Scout: 0W

Llama 4 Scout (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

118 tok/svs155 tok/s

Time to first token

175 msvs130 ms

Claude Sonnet 5: 0WLlama 4 Scout: 2W

Llama 4 Scout (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$10/1Mvs$0.3/1M

Input price

$2/1Mvs$0.1/1M

Context window

1Mvs1.3M

Claude Sonnet 5: 0WLlama 4 Scout: 3W

Recommended Workload Routing

Repo / coding agentsClaude Sonnet 5

Higher SWE-bench (73.8%).

High-volume chatLlama 4 Scout

Lower output list price ($0.3/1M).

Voice / low-latency UILlama 4 Scout

Lower TTFT (130 ms).

Long-document RAGLlama 4 Scout

Larger window (1.3M).

Screenshots / visionClaude Sonnet 5

Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Claude Sonnet 5	Higher SWE-bench (73.8%).
High-volume chat	Llama 4 Scout	Lower output list price ($0.3/1M).
Voice / low-latency UI	Llama 4 Scout	Lower TTFT (130 ms).
Long-document RAG	Llama 4 Scout	Larger window (1.3M).
Screenshots / vision	Claude Sonnet 5	Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).

Frequently Asked Questions

Which is better overall, Claude Sonnet 5 or Llama 4 Scout?

Claude Sonnet 5 has the higher preference Elo in our latest snapshot (1,556). “Better” still depends on coding, price, and latency — see the table.

Which is better at coding, Claude Sonnet 5 or Llama 4 Scout?

Claude Sonnet 5 leads SWE-bench at 73.8% vs 52.4%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

Llama 4 Scout output tokens are $0.3/1M versus $10/1M. Input prices and retry rates still move the real bill.

Which is faster, Claude Sonnet 5 or Llama 4 Scout?

Llama 4 Scout has the lower time-to-first-token (130 ms vs 175 ms). Tokens/sec is a separate column if you care about long completions.

Which has the larger context window?

Llama 4 Scout accepts 1.3M tokens versus 1M.

Can I self-host either model?

Llama 4 Scout is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Claude Sonnet 5 and Llama 4 Scout Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Claude Sonnet 5

Llama 4 Scout

Llama 4 Scout

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Haiku 4.5 vs Llama 4 Scout: cheap Claude versus cheap open Llama

Sonnet vs Opus in 2026: same family, different invoice

Claude Sonnet 5 at $2/$10: the 2026 Anthropic workhorse

Llama 4 Scout: long-context open sibling of Maverick

Cast Your Matchup Vote

Community Discussions (0)

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CompareLLM Matrix

Claude Sonnet 5

Llama 4 Scout

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Claude Sonnet 5

Llama 4 Scout

Llama 4 Scout

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Haiku 4.5 vs Llama 4 Scout: cheap Claude versus cheap open Llama

Sonnet vs Opus in 2026: same family, different invoice

Claude Sonnet 5 at $2/$10: the 2026 Anthropic workhorse

Llama 4 Scout: long-context open sibling of Maverick

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Claude Sonnet 5

Llama 4 Scout

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons