Scale Labs MCP Atlas (MCP Atlas)

We show this table for reference; we do not rank on it.

A Scale Labs public leaderboard mirrored as display-only reference data. It does not affect BenchLM rankings.

Scale score on MCP Atlas — September 29, 2026 snapshot

We mirror the published scale score view for MCP Atlas. Muse Spark 1.1 leads the public snapshot at 88.1%, followed by Fable 5.1 (87.2%) and claude-opus-5 (xhigh) (85.8%). We do not use these results to rank models overall.

1Proprietary

Muse Spark 1.1

Scale score table (34 models)

Score

Muse Spark 1.1Meta · Closed

88.1%

Fable 5.1Anthropic

87.2%

claude-opus-5 (xhigh)Anthropic

85.8%

Qwen3.8-2.4T-A95B (xHigh)Alibaba

84.5%

GLM-5.3Z.AI · Open weight

84.2%

Gemini 3.5 Flash (high)Google

83.6%

Claude Fable 5Anthropic · Closed

83.3%

kimi-k3 (max)Kimi

82.3%

claude-opus-4-8 (max)Anthropic

82.2%

Muse SparkMeta · Closed

82.2%

gpt-5.6 (sol)OpenAI

81.8%

Inkling-SmallThinking Machines Lab · Open weight

79.2%

claude-opus-4-7 (max)Anthropic

79.1%

gemini-3.1-pro-preview (high)Google

78.2%

glm-5p2Z.AI

77.8%

claude-opus-4-6 (max)Anthropic

76.8%

Inkling (xHigh)Thinkingmachines

76%

glm-5p1Z.AI

75.6%

gpt-5.5 (xhigh)OpenAI

75.3%

gpt-5.4 (xhigh)OpenAI

70.6%

gemini-3-pro-previewGoogle

70.3%

claude-opus-4-5 (high)Anthropic

69.8%

Claude Sonnet 4.6Anthropic · Closed

69.5%

gpt-5.2 (xhigh)OpenAI

67.6%

kimi-k2p5Kimi

64.4%

Nemotron 3 Ultra (thinking)Nvidia

63.1%

gemini-3-flash-previewGoogle

62%

claude-sonnet-4-5 (thinking)Anthropic

59.5%

glm-4p7Z.AI

58.1%

gemini-3.1-flash-lite (high)Google

57.1%

gpt-5.4-mini (xhigh)OpenAI

56.7%

gpt-5.1 (high)OpenAI

50.1%

o3-proOpenAI · Closed

44.5%

Claude Haiku 4.5Anthropic · Closed

40.2%

How to read this leaderboard

Compare the published configurations as complete evaluation systems. The source can combine a base model, agent scaffold, tools, budget, and inference setting in each result.

Operator receipt: 34 sourced rows are currently displayable on this page; the leading published row is Muse Spark 1.1 at 88.1%.

Honest limit: This Scale table is display-only context, not benchmark provenance or a weighted model-only comparison.

MCP Atlas on Scale Labs

How BenchLM shows MCP Atlas

BenchLM mirrors 34 published rows from Scale Labs’ public MCP Atlas leaderboard, captured on September 29, 2026 snapshot.

The table is display only. It is useful context for a published agent or model configuration, but it does not enter BenchLM’s overall or category rankings.

Snapshot

34 published rowsScale Labs sourceDisplay only

MCP Atlas on Scale Labs

The published MCP Atlas snapshot places Muse Spark 1.1 first at 88.1%. The third row is 2.3 points behind. The broader top-10 range is 5.9 points, so many of the published results sit in a relatively narrow band.

34 models have been evaluated on MCP Atlas. The benchmark falls in the Agentic category. We keep external benchmark mirrors separate from the weighted global scoring system, so these results remain source-specific evidence. MCP Atlas is currently displayed for reference but excluded from the scoring formula, so it does not directly affect overall rankings.

About MCP Atlas

Year

2026

Tasks

34 published rows

Format

Published Scale leaderboard score

Difficulty

External agent and model evaluation

BenchLM mirrors 34 published rows from the MCP Atlas public table captured on September 29, 2026 snapshot.

Scale Labs leaderboard Public benchmark source

Freshness and provenance

Version

MCP Atlas 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.

Questions

What does MCP Atlas measure?

A Scale Labs public leaderboard mirrored as display-only reference data. It does not affect BenchLM rankings.

Which model leads the published MCP Atlas snapshot?

Muse Spark 1.1 currently leads the published MCP Atlas snapshot with 88.1% scale score. BenchLM shows this benchmark for display only and does not use it in overall rankings.

How many models are evaluated on MCP Atlas?

The September 29, 2026 snapshot snapshot contains 34 AI models.

Last updated: September 29, 2026 snapshot · mirrored from the public benchmark leaderboard

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