Model profile
GPT-5.6 Luna
Evidence coverage
42 of 323 tracked benchmarks are published. 24 are verified and 18 provisional. 6 of 8 categories are measured.
- Published / tracked
- 42 / 323
- Verified
- 24
- Provisional
- 18
- Categories with evidence
- 6 / 8
Evidence by category
- Agentic15 benchmarksMixed evidence
- Coding7 benchmarksMixed evidence
- Reasoning3 benchmarksMixed evidence
- Knowledge10 benchmarksMixed evidence
- Math3 benchmarksVerified
- Multilingual0 benchmarksNot measured
- Multimodal3 benchmarksMixed evidence
- Inst. Following0 benchmarksNot measured
GPT-5.6 Luna ranks #22 out of 200 models on the public leaderboard with an overall score of 67.17/100. It does not yet have enough sourced coverage for BenchLM's verified leaderboard. This places it in the mid-tier of AI models, with strengths in specific benchmark categories.
GPT-5.6 Luna is a proprietary model with a 1M token context window. It uses explicit chain-of-thought reasoning, which typically improves performance on math and complex reasoning tasks at the cost of higher latency and token usage.
GPT-5.6 Luna sits inside the GPT-5.6 family alongside GPT-5.6 Sol, GPT-5.6 Terra. This profile currently has 42 of 323 tracked benchmarks. BenchLM only exposes non-generated benchmark rows publicly, so missing categories stay blank until a sourced evaluation is available.
Its strongest category is Coding (#5), while its weakest is Multimodal & Grounded (#18). This performance profile makes it particularly well-suited for software development and code generation tasks.
Peer position
Exact provisional scores and ranks for the closest listed peers. A score can appear before a model clears the evidence threshold for a rank, so equal scores can have different rank states.
Range 66.69–67.54
- InklingThinking Machines LabCompare#2067.54Inkling is #20 with a score of 67.54.
- Qwen3.7 PlusAlibabaCompare#2167.22Qwen3.7 Plus is #21 with a score of 67.22.
- GPT-5.6 LunaCurrent modelOpenAI#2267.17GPT-5.6 Luna is #22 with a score of 67.17.
- GPT-5.2 ProOpenAICompare#2367.01GPT-5.2 Pro is #23 with a score of 67.01.
- GLM-5-TurboZ.AICompare#2466.89GLM-5-Turbo is #24 with a score of 66.89.
- GPT-5.4 nanoOpenAICompare#2566.79GPT-5.4 nano is #25 with a score of 66.79.
- GPT-5.3 CodexOpenAICompare#2666.69GPT-5.3 Codex is #26 with a score of 66.69.
Category percentile
More
Relative position among models eligible for each sourced category. A higher percentile means a stronger position within that category's ranked cohort; 100 is highest.
- Coding97%Eligible cohort rank #5 of 122Category score 72.6
- Knowledge76%Eligible cohort rank #13 of 52Category score 80.9
- Agentic87%Eligible cohort rank #16 of 119Category score 58.5
- Multimodal39%Eligible cohort rank #18 of 29Category score 65.9
Category evidence
Scores and ranks appear only where this model has published benchmark evidence. Categories without displayable source records remain not measured.
| Category | Score | Rank | Percentile | Weight | Benchmarks | Evidence |
|---|---|---|---|---|---|---|
| AgenticRank #16 of 119Percentile 87thWeight 22%15 benchmarksMixed sources | 58.5 | #16 of 119 | 87th | 22% | 15 benchmarks | Mixed sources |
| CodingRank #5 of 122Percentile 97thWeight 20%7 benchmarksMixed sources | 72.6 | #5 of 122 | 97th | 20% | 7 benchmarks | Mixed sources |
| ReasoningWeight 17%3 benchmarksMixed sources | Score pending | Not ranked | Not available | 17% | 3 benchmarks | Mixed sources |
| KnowledgeRank #13 of 52Percentile 76thWeight 12%10 benchmarksMixed sources | 80.9 | #13 of 52 | 76th | 12% | 10 benchmarks | Mixed sources |
| MathRank Not rankedWeight 5%3 benchmarksVerified | 97.1 | Not ranked | Not available | 5% | 3 benchmarks | Verified |
| MultilingualWeight 7%0 benchmarksNot measured | Not measured | Not ranked | Not available | 7% | 0 benchmarks | Not measured |
| MultimodalRank #18 of 29Percentile 39thWeight 12%3 benchmarksMixed sources | 65.9 | #18 of 29 | 39th | 12% | 3 benchmarks | Mixed sources |
| Inst. FollowingWeight 5%0 benchmarksNot measured | Not measured | Not ranked | Not available | 5% | 0 benchmarks | Not measured |
Benchmark Details
Rows below have a displayable published verification record. Each source link and provenance note remains in the page HTML while its category is closed. Source-unverified manual rows and generated rows stay hidden.
Agentic15 benchmarks
Artificial Analysis Agentic Index
GDPval-AA normalized
Artificial Analysis Harvey LAB-AA
Artificial Analysis ITBench-AA
Artificial Analysis Tau3-Banking
Artificial Analysis AutomationBench
Coding7 benchmarks
Artificial Analysis Coding Index
Artificial Analysis SciCode
Reasoning3 benchmarks
Abstraction and Reasoning Corpus for AGI v3
Artificial Analysis Long Context Reasoning
Critical Physics Tasks
Knowledge10 benchmarks
Graduate-Level Google-Proof Q&A
GPQA Diamond
Artificial Analysis GPQA Diamond
Artificial Analysis Humanity's Last Exam
Artificial Analysis Omniscience Index
Artificial Analysis Omniscience Accuracy
Artificial Analysis Omniscience Hallucination Rate
Math3 benchmarks
FrontierMath v2 Tiers 1-3
FrontierMath v2 Tier 4
FrontierMath legacy aggregate
Multimodal3 benchmarks
Massive Multi-discipline Multimodal Understanding Pro
MMMU-Pro with Python
Artificial Analysis MMMU-Pro
External signals1 benchmark
ExploitBench v8-bench
Frequently Asked Questions
How does GPT-5.6 Luna perform overall in AI benchmarks?
GPT-5.6 Luna currently ranks #22 out of 200 models on BenchLM's provisional leaderboard with an overall score of 67.17. It is created by OpenAI. Its published context window is 1M.
Is GPT-5.6 Luna good for knowledge and understanding?
GPT-5.6 Luna ranks #13 out of 52 models in knowledge and understanding benchmarks with an average score of 80.9. There are stronger options in this category.
Is GPT-5.6 Luna good for coding and programming?
GPT-5.6 Luna ranks #5 out of 122 models in coding and programming benchmarks with an average score of 72.6. It is among the top performers in this category.
Is GPT-5.6 Luna good for mathematics?
GPT-5.6 Luna has visible benchmark coverage in mathematics, but BenchLM does not currently assign it a global category rank there.
Is GPT-5.6 Luna good for reasoning and logic?
GPT-5.6 Luna has visible benchmark coverage in reasoning and logic, but BenchLM does not currently assign it a global category rank there.
Is GPT-5.6 Luna good for agentic tool use and computer tasks?
GPT-5.6 Luna ranks #16 out of 119 models in agentic tool use and computer tasks benchmarks with an average score of 58.5. There are stronger options in this category.
Is GPT-5.6 Luna good for multimodal and grounded tasks?
GPT-5.6 Luna ranks #18 out of 29 models in multimodal and grounded tasks benchmarks with an average score of 65.9. There are stronger options in this category.
Which sibling models are related to GPT-5.6 Luna?
GPT-5.6 Luna belongs to the GPT-5.6 family. Related variants on BenchLM include GPT-5.6 Sol, GPT-5.6 Terra.
Does GPT-5.6 Luna have full benchmark coverage on BenchLM?
Not yet. GPT-5.6 Luna currently has 42 published benchmark scores out of the 323 benchmarks BenchLM tracks. BenchLM only exposes non-generated public benchmark rows, so missing categories stay blank until a sourced evaluation is available.
What is the context window size of GPT-5.6 Luna?
GPT-5.6 Luna has a published context window of 1M, which determines how much text it can process in a single interaction.
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