Pairwise benchmark snapshot · Aug 16, 2026

Llama 4 Scout vs Yi-Lightning benchmark

Name: Llama 4 Scout vs Yi-Lightning AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Llama 4 Scout (Meta) and Yi-Lightning (01.AI) using the latest snapshots we have as of Aug 16, 2026. On preference Elo, Yi-Lightning is ahead by 63 points (1,475 vs 1,412; seed-bootstrap (Aug 1, 2026)). On SWE-bench coding, Yi-Lightning resolves 63.4% versus 52.4% (seed-bootstrap (Aug 1, 2026)). Llama 4 Scout streams faster (155 tok/s) while Yi-Lightning is the cheaper output token ($0.14/1M). 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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Instant pairwise benchmark recalculation across 400+ LLMs

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.

Llama 4 Scout (4)vsYi-Lightning (6)

Llama 4 Scout: 4W (40%)Overall: Yi-LightningYi-Lightning: 6W (60%)

← Llama 4 ScoutYi-Lightning →

Yi-Lightning (5/5)

Intelligence & Reasoning

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

Preference Elo

1,412vs1,475

Coding Elo

1,398vs1,480

SWE-bench

52.4%vs63.4%

LiveBench

59.6%vs65%

GPQA Diamond

71.2%vs78%

Llama 4 Scout: 0WYi-Lightning: 5W

Llama 4 Scout (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

155 tok/svs130 tok/s

Time to first token

130 msvs150 ms

Llama 4 Scout: 2WYi-Lightning: 0W

Llama 4 Scout (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$0.3/1Mvs$0.14/1M

Input price

$0.1/1Mvs$0.14/1M

Context window

1.3Mvs16k

Llama 4 Scout: 2WYi-Lightning: 1W

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 AdvantageYi-Lightning 4/6

Preference Elo

Yi-Lightning

63 pts advantage

Throughput Speed

Llama 4 Scout

25 tok/s faster

Price Efficiency

Yi-Lightning

$0.16/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

1,412

EloHigh is better

1,475+4%

Code Elo

High is better

1,398

Code EloHigh is better

1,480+6%

LiveBench

High is better

59.6%

LiveBenchHigh is better

65%+9%

SWE-bench

High is better

52.4%

SWE-benchHigh is better

63.4%+21%

GPQA

High is better

71.2%

GPQAHigh is better

78%+10%

TTFT

Low is better

+15%130 ms

TTFTLow is better

150 ms

Speed

High is better

+19%155 tok/s

SpeedHigh is better

130 tok/s

In $

Low is better

+40%$0.1/1M

In $Low is better

$0.14/1M

Out $

Low is better

$0.3/1M

Out $Low is better

$0.14/1M+114%

Context

High is better

+7900%1.3M

ContextHigh is better

16k

Interactive Simulator

Workload Cost & Savings Calculator

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

Save up to 13% with Yi-Lightning

Monthly Volume50M tokens/mo

Quick Presets:

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

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

Llama 4 Scout$8.00 / mo

In: $3.50Out: $4.50

Yi-Lightning$7.00 / mo

In: $4.90Out: $2.10

Estimated Cost Delta

Yi-Lightning is estimated to save $1.00/month ($12/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
Yi-Lightning:Pick Yi-Lightning when repo-level coding accuracy is the constraint.
2
Llama 4 Scout:Pick Llama 4 Scout when time-to-first-token matters more than peak Elo.
3
Llama 4 Scout:Pick Llama 4 Scout for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsYi-Lightning

Higher SWE-bench (63.4%).

High-volume chatYi-Lightning

Lower output list price ($0.14/1M).

Voice / low-latency UILlama 4 Scout

Lower TTFT (130 ms).

Long-document RAGLlama 4 Scout

Larger window (1.3M).

Screenshots / visionLlama 4 Scout

Llama 4 Scout is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Yi-Lightning	Higher SWE-bench (63.4%).
High-volume chat	Yi-Lightning	Lower output list price ($0.14/1M).
Voice / low-latency UI	Llama 4 Scout	Lower TTFT (130 ms).
Long-document RAG	Llama 4 Scout	Larger window (1.3M).
Screenshots / vision	Llama 4 Scout	Llama 4 Scout is the side marked multimodal in the catalog.

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.

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

Llama 4 Scout

Elo 1,412

LiveBench59.6%

SWE-bench52.4%

Speed155 tok/s

Output cost$0.3/1M

01.AI

Yi-Lightning

Elo 1,475

LiveBench65%

SWE-bench63.4%

Speed130 tok/s

Output cost$0.14/1M

Frequently Asked Questions

Which is better overall, Llama 4 Scout or Yi-Lightning?: Yi-Lightning has the higher preference Elo in our latest snapshot (1,475). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Llama 4 Scout or Yi-Lightning?: Yi-Lightning leads SWE-bench at 63.4% vs 52.4%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: Yi-Lightning output tokens are $0.14/1M versus $0.3/1M. Input prices and retry rates still move the real bill.
Which is faster, Llama 4 Scout or Yi-Lightning?: Llama 4 Scout has the lower time-to-first-token (130 ms vs 150 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 16k.
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. Llama 4 Scout and Yi-Lightning Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Llama 4 Scout matchups →|All Yi-Lightning matchups →

Llama 4 Scout vs Llama 4 Maverick (previous llama)Yi-Lightning vs Yi-Large (previous other)Yi-Lightning vs Ernie 4.5 Turbo (next other)Llama 4 Maverick vs Yi-Lightning Yi-Large vs Llama 4 Scout Llama 3.1 405B vs Llama 4 Scout

Llama 4 Scout vs Yi-Lightning benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Llama 4 Scout (4)vsYi-Lightning (6)

Llama 4 Scout: 4W (40%)Overall: Yi-LightningYi-Lightning: 6W (60%)

← Llama 4 ScoutYi-Lightning →

Yi-Lightning (5/5)

Intelligence & Reasoning

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

Preference Elo

1,412vs1,475

Coding Elo

1,398vs1,480

SWE-bench

52.4%vs63.4%

LiveBench

59.6%vs65%

GPQA Diamond

71.2%vs78%

Llama 4 Scout: 0WYi-Lightning: 5W

Llama 4 Scout (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

155 tok/svs130 tok/s

Time to first token

130 msvs150 ms

Llama 4 Scout: 2WYi-Lightning: 0W

Llama 4 Scout (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$0.3/1Mvs$0.14/1M

Input price

$0.1/1Mvs$0.14/1M

Context window

1.3Mvs16k

Llama 4 Scout: 2WYi-Lightning: 1W

Recommended Workload Routing

Repo / coding agentsYi-Lightning

Higher SWE-bench (63.4%).

High-volume chatYi-Lightning

Lower output list price ($0.14/1M).

Voice / low-latency UILlama 4 Scout

Lower TTFT (130 ms).

Long-document RAGLlama 4 Scout

Larger window (1.3M).

Screenshots / visionLlama 4 Scout

Llama 4 Scout is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Yi-Lightning	Higher SWE-bench (63.4%).
High-volume chat	Yi-Lightning	Lower output list price ($0.14/1M).
Voice / low-latency UI	Llama 4 Scout	Lower TTFT (130 ms).
Long-document RAG	Llama 4 Scout	Larger window (1.3M).
Screenshots / vision	Llama 4 Scout	Llama 4 Scout is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, Llama 4 Scout or Yi-Lightning?

Yi-Lightning has the higher preference Elo in our latest snapshot (1,475). “Better” still depends on coding, price, and latency — see the table.

Which is better at coding, Llama 4 Scout or Yi-Lightning?

Yi-Lightning leads SWE-bench at 63.4% vs 52.4%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

Yi-Lightning output tokens are $0.14/1M versus $0.3/1M. Input prices and retry rates still move the real bill.

Which is faster, Llama 4 Scout or Yi-Lightning?

Llama 4 Scout has the lower time-to-first-token (130 ms vs 150 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 16k.

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. Llama 4 Scout and Yi-Lightning Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

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Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Yi-Lightning

Llama 4 Scout

Yi-Lightning

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

Llama 4 Scout: long-context open sibling of Maverick

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CompareLLM Matrix

Llama 4 Scout

Yi-Lightning

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

Yi-Lightning

Llama 4 Scout

Yi-Lightning

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

Llama 4 Scout: long-context open sibling of Maverick

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Llama 4 Scout

Yi-Lightning

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons