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Benchmark profile

SpaceXAI MTS Eval

An internal research-and-development evaluation reported in the Grok 4.6 model card.

Data verified 26 confirmed releases in the last 30 daysStart free brief

Benchmark score on SpaceXAI MTS Eval — August 12, 2026

BenchLM mirrors the published score view for SpaceXAI MTS Eval. Grok 4.6 leads the public snapshot at 61.1% , followed by Grok 4.5 (57.1%) and Claude Opus 4.8 (55.8%). We do not use these results to rank models overall.

1Closed

Grok 4.6

xAI

grok-4-6

61.1%
Overall 62.44Context 500K
2Closed

Grok 4.5

xAI

grok-4-5

57.1%
Overall 75.42Context 500K
3Closed

Claude Opus 4.8

Anthropic

claude-opus-4-8

55.8%
Overall 77.04Context 1M
6 modelsCodingCurrentDisplay onlyUpdated August 12, 2026

Benchmark score table (6 models)

Score
1
Grok 4.6xAI · Closed
61.1%
2
Grok 4.5xAI · Closed
57.1%
3
Claude Opus 4.8Anthropic · Closed
55.8%
4
GPT-5.6 SolOpenAI · Closed
52.1%
5
GPT-5.5OpenAI · Closed
46.4%
6
Grok 4.3xAI · Closed
40.6%

The published SpaceXAI MTS Eval snapshot places Grok 4.6 first at 61.1%. The third row is 5.3 points behind. The broader top-10 range is 20.5 points, so the table still separates the published systems.

6 models have been evaluated on SpaceXAI MTS Eval. The benchmark falls in the Coding category. This category carries a 20% weight in BenchLM.ai's overall scoring system. SpaceXAI MTS Eval is currently displayed for reference but excluded from the scoring formula, so it does not directly affect overall rankings.

About SpaceXAI MTS Eval

Year

2026

Tasks

Internal research-and-development tasks

Format

Accuracy

Difficulty

Frontier technical research

No public benchmark repository or result page was found. BenchLM keeps the card's exact comparison rows display-only.

Grok 4.6 Model Card

BenchLM freshness & provenance

Version

SpaceXAI MTS Eval 2026

Refresh cadence

Quarterly

Staleness state

Current

Question availability

Public benchmark set

CurrentDisplay only

BenchLM uses freshness metadata to decide whether a benchmark should still be treated as a strong differentiator, a benchmark to watch, or a display-only reference. For the full scoring policy, see the BenchLM methodology page.

FAQ

What does SpaceXAI MTS Eval measure?

An internal research-and-development evaluation reported in the Grok 4.6 model card.

Which model scores highest on SpaceXAI MTS Eval?

Grok 4.6 by xAI currently leads with a score of 61.1% on SpaceXAI MTS Eval.

How many models are evaluated on SpaceXAI MTS Eval?

6 AI models have been evaluated on SpaceXAI MTS Eval on BenchLM.

Compare Top Models on SpaceXAI MTS Eval

Grok 4.6 vs Grok 4.5Grok 4.5 vs Claude Opus 4.8Claude Opus 4.8 vs GPT-5.6 SolGPT-5.6 Sol vs GPT-5.5
Last updated: August 12, 2026 · BenchLM version SpaceXAI MTS Eval 2026

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