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© 2026 CompareLLM. Public benchmark data aggregated from Arena Elo, LiveBench, SWE-bench & OpenRouter.

Every score has a dated snapshot.

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  3. Seed 2.1 Turbo vs Perplexity: Sonar

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Seed 2.1 Turbo vs Perplexity: Sonar benchmark

In this head-to-head showdown, Perplexity: Sonar is more budget-friendly at $1/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose Seed 2.1 Turbo if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Perplexity: Sonar if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
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Executive Verdict Summary

Seed 2.1 Turbo holds empirical advantage (2 of 3 metrics)

Coding / SWESWE-bench
Seed 2.1 TurboTop code solve rate
ReasoningGPQA / Live
Seed 2.1 TurboTop logical accuracy
Best Value$/1M Tok
Perplexity: SonarLowest API billing cost
Speed / TokTok/Sec
Seed 2.1 TurboFastest stream rate

Verified Advantage Breakdown

3 benchmarks evaluated across capability, speed, and cost

Seed 2.1 Turbo (2)Perplexity: Sonar (1)
Seed 2.1 Turbo
2 of 3 Wins
✓Input price✓Context window
Perplexity: Sonar
1 of 3 Wins
✓Output price
ByteDance
Leads 2 of 3
Seed 2.1 Turbo

ByteDance Seed 2.1 Turbo, listed on public model timelines as an Aug 10 2026 API drop.

Seed 2.1Elo 1,472In: $0.5 · Out: $2.5/1M
perplexity
Leads 1 of 3
Perplexity: Sonar

Auto-discovered from OpenRouter (perplexity/sonar). Preview until a second source matches.

In: $1 · Out: $1/1M

Doubao Series Lineage & Sibling Variants

3 models

Currently comparing Seed 2.1 Turbo vs Perplexity: Sonar. Alternative family tiers available.

Active: Seed 2.1 Turbo
Doubao Pro 1.5$0.28Doubao Lite 1.5$0.1
Top Rival Showdowns for Seed 2.1 Turbo
All Matchups
Compare vs:vs Claude Opus 4.5vs GPT-5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Pro
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar LeaderPerplexity: Sonar Wins

Perplexity: Sonar

$1 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Seed 2.1 Turbo (9)vsPerplexity: Sonar (1)
Seed 2.1 Turbo: 9W (90%)Overall: Seed 2.1 TurboPerplexity: Sonar: 1W (10%)
← Seed 2.1 TurboPerplexity: Sonar →
🏆Seed 2.1 Turbo Leads(5/5)

Intelligence & Reasoning

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

Benchmark
Seed 2.1 TurbovsPerplexity: Sonar
Preference Elo
1,472vs—
Coding Elo
1,480vs—
SWE-bench
63.2%vs—
LiveBench
64.8%vs—
GPQA Diamond
76.8%vs—
Seed 2.1 Turbo: 5WPerplexity: Sonar: 0W
🏆Seed 2.1 Turbo Leads(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Seed 2.1 TurbovsPerplexity: Sonar
Output speed
160 tok/svs—
Time to first token
120 msvs—
Seed 2.1 Turbo: 2WPerplexity: Sonar: 0W
🏆Seed 2.1 Turbo Leads(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Seed 2.1 TurbovsPerplexity: Sonar
Output price
$2.5/1Mvs$1/1M+$1.5/1M
Input price
$0.5/1Mvs$1/1M+$0.5/1M
Context window
262kvs127k+135k
Seed 2.1 Turbo: 2WPerplexity: Sonar: 1W

Side-by-Side Benchmark Matrix

Seed 2.1 TurboPerplexity: Sonar
Preference Elo
Seed 2.1 Turbo1,472
Perplexity: Sonar—
Coding Elo
Seed 2.1 Turbo1,480
Perplexity: Sonar—
LiveBench
Seed 2.1 Turbo64.8%
Perplexity: Sonar—
SWE-bench
Seed 2.1 Turbo63.2%
Perplexity: Sonar—
GPQA Diamond
Seed 2.1 Turbo76.8%
Perplexity: Sonar—
Time to first token
Seed 2.1 Turbo120 ms
Perplexity: Sonar—
Output speed
Seed 2.1 Turbo160 tok/s
Perplexity: Sonar—
Input priceSeed 2.1 Turbo +$0.5/1M
Seed 2.1 Turbo$0.5/1M
Perplexity: Sonar$1/1M
Output pricePerplexity: Sonar +$1.5/1M
Seed 2.1 Turbo$2.5/1M
Perplexity: Sonar$1/1M
Context windowSeed 2.1 Turbo +135k
Seed 2.1 Turbo262k
Perplexity: Sonar127k
BenchmarkSeed 2.1 TurboPerplexity: SonarAdvantage Delta
Preference Elo
1,472
lmarena · Aug 16, 2026
——
Coding Elo
1,480
lmarena · Aug 16, 2026
——
LiveBench
64.8%
livebench · Aug 16, 2026
——
SWE-bench
63.2%
swebench · Aug 16, 2026
——
GPQA Diamond
76.8%
seed-bootstrap · Aug 16, 2026
——
Time to first token
120 ms
seed-bootstrap · Aug 16, 2026
——
Output speed
160 tok/s
seed-bootstrap · Aug 16, 2026
——
Input price
$0.5/1M
openrouter · Aug 17, 2026
$1/1M
openrouter · Aug 17, 2026
+$0.5/1M
Output price
$2.5/1M
openrouter · Aug 17, 2026
$1/1M
openrouter · Aug 17, 2026
+$1.5/1M
Context window
262k
openrouter · Aug 17, 2026
127k
openrouter · Aug 17, 2026
+135k

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save 9% with Perplexity: Sonar
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Seed 2.1 Turbo$55.00 / mo
In: $17.5Out: $37.5
Perplexity: Sonar$50.00 / mo
In: $35Out: $15
Estimated Cost Delta

Perplexity: Sonar is estimated to save $5.00/month ($60/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Perplexity: Sonar:Pick Perplexity: Sonar when you are optimizing output cost.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatPerplexity: Sonar

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

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGSeed 2.1 Turbo

Larger window (262k).

Screenshots / visionSeed 2.1 Turbo

Seed 2.1 Turbo is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatPerplexity: SonarLower output list price ($1/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGSeed 2.1 TurboLarger window (262k).
Screenshots / visionSeed 2.1 TurboSeed 2.1 Turbo is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news
launchAug 10, 2026

Seed 2.1 Turbo (Aug 10): ByteDance’s API drop on the public timeline

Listed on public model timelines as an Aug 10 2026 API drop. Preview-quality story, indexable because we have a full snapshot.

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
ByteDance

Seed 2.1 Turbo

Elo 1,472
SWE-bench63.2%
Speed (tok/s)160 tok/s
Input / 1M Tokens$0.5/1M
Output / 1M Tokens$2.5/1M
perplexity

Perplexity: Sonar

Elo n/a
SWE-bench—
Speed (tok/s)127k
Input / 1M Tokens$1/1M
Output / 1M Tokens$1/1M

Frequently Asked Questions

Which is better overall, Seed 2.1 Turbo or Perplexity: Sonar?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Seed 2.1 Turbo or Perplexity: Sonar?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
Perplexity: Sonar output tokens are $1/1M versus $2.5/1M. Input prices and retry rates still move the real bill.
Which is faster, Seed 2.1 Turbo or Perplexity: Sonar?
We do not have TTFT for both models.
Which has the larger context window?
Seed 2.1 Turbo accepts 262k tokens versus 127k.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
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. Seed 2.1 Turbo and Perplexity: Sonar Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • launch · Aug 10, 2026

    Seed 2.1 Turbo (Aug 10): ByteDance’s API drop on the public timeline

Similar Head-to-Head Comparisons

All Seed 2.1 Turbo matchups →|All Perplexity: Sonar matchups →
Doubao Pro 1.5 vs Seed 2.1 TurboYi-Lightning vs Seed 2.1 TurboMistral Large 3 vs Seed 2.1 TurboGemini 2.0 Flash Thinking vs Seed 2.1 TurboGemini 3 Flash vs Seed 2.1 TurboDoubao Lite 1.5 vs Seed 2.1 Turbo