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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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  2. Comparisons
  3. SpaceXAI: Grok Build 0.1 vs Seed 2.1 Turbo

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

SpaceXAI: Grok Build 0.1 vs Seed 2.1 Turbo benchmark

In this head-to-head showdown, SpaceXAI: Grok Build 0.1 is more budget-friendly at $2/1M 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: Both SpaceXAI: Grok Build 0.1 and Seed 2.1 Turbo present distinct architectural strengths. Compare the verified benchmark matrix below to choose the model tailored to your specific application requirements.
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xAI
SpaceXAI: Grok Build 0.1

Auto-discovered from OpenRouter (x-ai/grok-build-0.1). Preview until a second source matches.

$2/1M out
ByteDance
Seed 2.1 Turbo

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

Seed 2.1Elo 1,472$2.5/1M out
Top Rival Showdowns for SpaceXAI: Grok Build 0.1
All Matchups
Compare vs:vs Claude Opus 4.5vs GPT-5vs Gemini 3 Provs DeepSeek V4 Provs Qwen 3 Max
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar Leader

SpaceXAI: Grok Build 0.1

$2 / 1M output

Capability Percentiles

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

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 AdvantageSeed 2.1 Turbo 5/6
Head-to-Head Comparison

Overall Matchup Breakdown

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

SpaceXAI: Grok Build 0.1 (1)vsSeed 2.1 Turbo (9)
SpaceXAI: Grok Build 0.1: 1W (10%)Overall: Seed 2.1 TurboSeed 2.1 Turbo: 9W (90%)
← SpaceXAI: Grok Build 0.1Seed 2.1 Turbo →
Seed 2.1 Turbo (5/5)

Intelligence & Reasoning

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

Preference Elo
—vs1,472
Coding Elo
—vs1,480
SWE-bench
—vs63.2%
LiveBench
—vs64.8%
GPQA Diamond
—vs76.8%
SpaceXAI: Grok Build 0.1: 0WSeed 2.1 Turbo: 5W
Seed 2.1 Turbo (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed
—vs160 tok/s
Time to first token
—vs120 ms
SpaceXAI: Grok Build 0.1: 0WSeed 2.1 Turbo: 2W
Seed 2.1 Turbo (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price
$2/1Mvs$2.5/1M
Input price
$1/1Mvs$0.5/1M
Context window
256kvs262k
SpaceXAI: Grok Build 0.1: 1WSeed 2.1 Turbo: 2W

Side-by-Side Benchmark Matrix

Preference Elo
SpaceXAI: Grok Build 0.1—
Seed 2.1 Turbo1,472
lmarena · Aug 16, 2026
Coding Elo
SpaceXAI: Grok Build 0.1—
Seed 2.1 Turbo1,480
lmarena · Aug 16, 2026
LiveBench
SpaceXAI: Grok Build 0.1—
Seed 2.1 Turbo64.8%
livebench · Aug 16, 2026
SWE-bench
SpaceXAI: Grok Build 0.1—
Seed 2.1 Turbo63.2%
swebench · Aug 16, 2026
GPQA Diamond
SpaceXAI: Grok Build 0.1—
Seed 2.1 Turbo76.8%
seed-bootstrap · Aug 16, 2026
Time to first token
SpaceXAI: Grok Build 0.1—
Seed 2.1 Turbo120 ms
seed-bootstrap · Aug 16, 2026
Output speed
SpaceXAI: Grok Build 0.1—
Seed 2.1 Turbo160 tok/s
seed-bootstrap · Aug 16, 2026
Input priceSeed 2.1 Turbo (+$0.5/1M)
SpaceXAI: Grok Build 0.1$1/1M
openrouter · Aug 17, 2026
Seed 2.1 Turbo$0.5/1M
openrouter · Aug 17, 2026
Output priceSpaceXAI: Grok Build 0.1 (+$0.5/1M)
SpaceXAI: Grok Build 0.1$2/1M
openrouter · Aug 17, 2026
Seed 2.1 Turbo$2.5/1M
openrouter · Aug 17, 2026
Context windowSeed 2.1 Turbo (+6k)
SpaceXAI: Grok Build 0.1256k
openrouter · Aug 17, 2026
Seed 2.1 Turbo262k
openrouter · Aug 17, 2026
BenchmarkSpaceXAI: Grok Build 0.1Seed 2.1 TurboAdvantage 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
$1/1M
openrouter · Aug 17, 2026
$0.5/1M
openrouter · Aug 17, 2026
Seed 2.1 Turbo (+$0.5/1M)
Output price
$2/1M
openrouter · Aug 17, 2026
$2.5/1M
openrouter · Aug 17, 2026
SpaceXAI: Grok Build 0.1 (+$0.5/1M)
Context window
256k
openrouter · Aug 17, 2026
262k
openrouter · Aug 17, 2026
Seed 2.1 Turbo (+6k)
Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 15% with Seed 2.1 Turbo
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
SpaceXAI: Grok Build 0.1$65.00 / mo
In: $35Out: $30
Seed 2.1 Turbo$55.00 / mo
In: $17.5Out: $37.5
Estimated Cost Delta

Seed 2.1 Turbo is estimated to save $10.00/month ($120/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    SpaceXAI: Grok Build 0.1:Pick SpaceXAI: Grok Build 0.1 when you are optimizing output cost.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatSpaceXAI: Grok Build 0.1

Lower output list price ($2/1M).

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 chatSpaceXAI: Grok Build 0.1Lower output list price ($2/1M).
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.

Community Sentiment

Cast Your Matchup Vote

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The real PNG is generated at /compare/grok-build-0-1-vs-seed-2-1-turbo/opengraph-image for crawlers.

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CompareLLM Matrix

Verified head-to-head card

LIVE
VS
xAI

SpaceXAI: Grok Build 0.1

Elo n/a
LiveBench—
SWE-bench—
Speed—
Output cost$2/1M
ByteDance

Seed 2.1 Turbo

Elo 1,472
LiveBench64.8%
SWE-bench63.2%
Speed160 tok/s
Output cost$2.5/1M

Frequently Asked Questions

Which is better overall, SpaceXAI: Grok Build 0.1 or Seed 2.1 Turbo?
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, SpaceXAI: Grok Build 0.1 or Seed 2.1 Turbo?
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?
SpaceXAI: Grok Build 0.1 output tokens are $2/1M versus $2.5/1M. Input prices and retry rates still move the real bill.
Which is faster, SpaceXAI: Grok Build 0.1 or Seed 2.1 Turbo?
We do not have TTFT for both models.
Which has the larger context window?
Seed 2.1 Turbo accepts 262k tokens versus 256k.
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. SpaceXAI: Grok Build 0.1 and Seed 2.1 Turbo 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 SpaceXAI: Grok Build 0.1 matchups →|All Seed 2.1 Turbo matchups →
Grok 4.6 vs Seed 2.1 TurboDoubao Pro 1.5 vs Seed 2.1 TurboGrok 4 vs Seed 2.1 TurboDoubao Lite 1.5 vs Seed 2.1 TurboGrok 3 vs Seed 2.1 TurboClaude Opus 4.5 vs Seed 2.1 Turbo