Scale Labs SWE Atlas - Overall (SWE Atlas - Overall)
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 SWE Atlas - Overall — November 12, 2026 snapshot
We mirror the published scale score view for SWE Atlas - Overall. Fable 5.2 leads the public snapshot at 80.5%, followed by Opus 5.5 (77.4%) and Fable 5.1 (76.4%). We do not use these results to rank models overall.
Fable 5.2
Anthropic
SWE Atlas - Overall
Opus 5.5
Anthropic
SWE Atlas - Overall
Fable 5.1
Anthropic
SWE Atlas - Overall
28 modelsCodingCurrentDisplay onlyUpdated November 12, 2026 snapshot
Scale score table (28 models)
| Rank | Model / configuration | Score | Parameters (B) | Open / closed |
|---|---|---|---|---|
| 1 | Fable 5.2AnthropicSWE Atlas - Overall | 80.5% | Not reported | Unknown |
| 2 | Opus 5.5AnthropicSWE Atlas - Overall | 77.4% | Not reported | Unknown |
| 3 | Fable 5.1AnthropicSWE Atlas - Overall | 76.4% | Not reported | Unknown |
| 4 | Gemini 4 CarbonGoogleSWE Atlas - Overall | 71.4% | Not reported | Closed |
| 5 | Gemini 4 ArgonGoogleSWE Atlas - Overall | 70.1% | Not reported | Closed |
| 6 | GPT-6 AstraOpenAISWE Atlas - Overall | 69.4% | Not reported | Closed |
| 7 | Sonnet 5.5AnthropicSWE Atlas - Overall | 68.3% | Not reported | Unknown |
| 8 | GPT-6.1 SolOpenAISWE Atlas - Overall | 65.9% | Not reported | Closed |
| 9 | Muse Wonder 1.0MetaSWE Atlas - Overall | 64.8% | Not reported | Unknown |
| 10 | Qwen 3.8 MaxAlibabaSWE Atlas - Overall | 64.4% | Not reported | Unknown |
| 11 | DeepSeek V4.1 Flash 1017DeepSeekSWE Atlas - Overall | 62.1% | Not reported | Open |
| 12 | Grok 4.7xAISWE Atlas - Overall | 62.1% | Not reported | Closed |
| 13 | Inkling 2 SmallThinking Machines LabSWE Atlas - Overall | 61.9% | Not reported | Closed |
| 14 | Kimi K3.1 ProMoonshot AISWE Atlas - Overall | 61.1% | Not reported | Open |
| 15 | Kimi K3Moonshot AISWE Atlas - Overall | 61% | Not reported | Open |
| 16 | Haiku 5.5AnthropicSWE Atlas - Overall | 59.4% | Not reported | Unknown |
| 17 | GLM-5.3Z.AISWE Atlas - Overall | 58.1% | Not reported | Open |
| 18 | GPT-6.1 TerraOpenAISWE Atlas - Overall | 57.7% | Not reported | Closed |
| 19 | Gemini 3.8 FlashGoogleSWE Atlas - Overall | 57.3% | Not reported | Closed |
| 20 | Muse Ember 1.0MetaSWE Atlas - Overall | 56% | Not reported | Unknown |
| 21 | GLM-5.3-FlashZ.AISWE Atlas - Overall | 55.3% | Not reported | Open |
| 22 | GPT-6 LunaOpenAISWE Atlas - Overall | 50.8% | Not reported | Closed |
| 23 | Mistral Large 4MistralSWE Atlas - Overall | 45.2% | Not reported | Open |
| 24 | Muse Spark OpenMetaSWE Atlas - Overall | 42.3% | Not reported | Open |
| 25 | MiniMax M3MiniMaxSWE Atlas - Overall | 39.3% | Not reported | Open |
| 26 | Nemotron 3.5 Super VLNvidiaSWE Atlas - Overall | 24.8% | Not reported | Unknown |
| 27 | Nemotron 3 UltraNVIDIASWE Atlas - Overall | 21.4% | Not reported | Open |
| 28 | GPT-OSS 120BOpenAISWE Atlas - Overall | 8.8% | Not reported | Open |
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: 28 sourced rows are currently displayable on this page; the leading published row is Fable 5.2 at 80.5%.
Honest limit: This Scale table is display-only context, not benchmark provenance or a weighted model-only comparison.
How BenchLM shows SWE Atlas - Overall
BenchLM mirrors 28 published rows from Scale Labs’ public SWE Atlas - Overall leaderboard, captured on November 12, 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
The published SWE Atlas - Overall snapshot places Fable 5.2 first at 80.5%. The third row is 4.1 points behind. The broader top-10 range is 16.1 points, so the table still separates the published systems.
28 models have been evaluated on SWE Atlas - Overall. The benchmark falls in the Coding category. We keep external benchmark mirrors separate from the weighted global scoring system, so these results remain source-specific evidence. SWE Atlas - Overall is currently displayed for reference but excluded from the scoring formula, so it does not directly affect overall rankings.
About SWE Atlas - Overall
Year
2026
Tasks
28 published rows
Format
Published Scale leaderboard score
Difficulty
External agent and model evaluation
BenchLM mirrors 28 published rows from the SWE Atlas - Overall public table captured on November 12, 2026 snapshot.
Freshness and provenance
Version
SWE Atlas - Overall 2026
Refresh cadence
Quarterly
Staleness state
Current
Question availability
Public benchmark set
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 SWE Atlas - Overall measure?
A Scale Labs public leaderboard mirrored as display-only reference data. It does not affect BenchLM rankings.
Which model leads the published SWE Atlas - Overall snapshot?
Fable 5.2 currently leads the published SWE Atlas - Overall snapshot with 80.5% scale score. BenchLM shows this benchmark for display only and does not use it in overall rankings.
How many models are evaluated on SWE Atlas - Overall?
The November 12, 2026 snapshot snapshot contains 28 AI models.
Know when it’s worth switching models
The model to choose, the cheaper alternative, and the release we would wait on.
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