APEX-Agents Original Effort: Max 43.0% mercor.com for GPT-5.6 Luna (max) on APEX-Agents Original (opens in a new tab) Archived copy (opens in a new tab) Pass rate Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on APEX-Agents Original AutomationBench 1.0.6 Effort: Low 1.8% openai.com for GPT-5.6 Luna (low) on AutomationBench 1.0.6 (opens in a new tab) Task pass rate Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on AutomationBench 1.0.6 AutomationBench 1.0.6 Effort: Medium 4.3% openai.com for GPT-5.6 Luna (medium) on AutomationBench 1.0.6 (opens in a new tab) Task pass rate Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on AutomationBench 1.0.6 AutomationBench 1.0.6 Effort: High 9.1% openai.com for GPT-5.6 Luna (high) on AutomationBench 1.0.6 (opens in a new tab) Task pass rate Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on AutomationBench 1.0.6 AutomationBench 1.0.6 Effort: xHigh 12.9% openai.com for GPT-5.6 Luna (xhigh) on AutomationBench 1.0.6 (opens in a new tab) Task pass rate Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on AutomationBench 1.0.6 AutomationBench 1.0.6 Effort: Max 17.0% openai.com for GPT-5.6 Luna (max) on AutomationBench 1.0.6 (opens in a new tab) Task pass rate Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on AutomationBench 1.0.6 AutomationBench 1.0.6 0.2% zapier.com for GPT-5.6 Luna on AutomationBench 1.0.6 (opens in a new tab) Archived copy (opens in a new tab) Task pass rate Reported October 7, 2026 Benchmark leaderboard Zapier Independent Zapier AutomationBench Team Record for GPT-5.6 Luna on AutomationBench 1.0.6 BrowseComp 130-question subset — Mercor web research agent Effort: Max Configuration: Mercor web research agent, 100 steps, 3 hours 83.8% mercor.com for GPT-5.6 Luna (max) on BrowseComp 130-question subset — Mercor web research agent (opens in a new tab) Archived copy (opens in a new tab) BrowseComp Accuracy Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on BrowseComp 130-question subset — Mercor web research agent BrowseComp 83.3% openai.com for GPT-5.6 Luna on BrowseComp BrowseComp (opens in a new tab) BrowseComp Accuracy Reported July 9, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on BrowseComp BrowseComp Chartography October 2026 leaderboard Effort: Max 31.4% surgehq.ai for GPT-5.6 Luna (Max) on Chartography October 2026 leaderboard (opens in a new tab) Archived copy (opens in a new tab) Chartography Pass@1 Reported October 7, 2026 Benchmark leaderboard Surge AI Independent Record for GPT-5.6 Luna on Chartography October 2026 leaderboard CharXiv Descriptive and reasoning — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 92.9% mercor.com for GPT-5.6 Luna (max) on CharXiv Descriptive and reasoning — Mercor single-shot (opens in a new tab) Archived copy (opens in a new tab) CharXiv Accuracy Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on CharXiv Descriptive and reasoning — Mercor single-shot CursorBench 4.0 Effort: Low 16.0% cursor.com for GPT-5.6 Luna (low) on CursorBench 4.0 (opens in a new tab) Archived copy (opens in a new tab) CursorBench Accuracy Reported October 7, 2026 Benchmark leaderboard Cursor Independent Record for GPT-5.6 Luna on CursorBench 4.0 CursorBench 4.0 Effort: Medium 22.2% cursor.com for GPT-5.6 Luna (medium) on CursorBench 4.0 (opens in a new tab) Archived copy (opens in a new tab) CursorBench Accuracy Reported October 7, 2026 Benchmark leaderboard Cursor Independent Record for GPT-5.6 Luna on CursorBench 4.0 CursorBench 4.0 Effort: High 29.4% cursor.com for GPT-5.6 Luna (high) on CursorBench 4.0 (opens in a new tab) Archived copy (opens in a new tab) CursorBench Accuracy Reported October 7, 2026 Benchmark leaderboard Cursor Independent Record for GPT-5.6 Luna on CursorBench 4.0 CursorBench 4.0 Effort: xHigh 33.0% cursor.com for GPT-5.6 Luna (xhigh) on CursorBench 4.0 (opens in a new tab) Archived copy (opens in a new tab) CursorBench Accuracy Reported October 7, 2026 Benchmark leaderboard Cursor Independent Record for GPT-5.6 Luna on CursorBench 4.0 CursorBench 4.0 Effort: Max 35.9% cursor.com for GPT-5.6 Luna (max) on CursorBench 4.0 (opens in a new tab) Archived copy (opens in a new tab) CursorBench Accuracy Reported October 7, 2026 Benchmark leaderboard Cursor Independent Record for GPT-5.6 Luna on CursorBench 4.0 DeepSWE 1.1 Effort: Low 1.2% openai.com for GPT-5.6 Luna (low) on DeepSWE 1.1 (opens in a new tab) DeepSWE Pass@1 Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on DeepSWE 1.1 DeepSWE 1.1 Effort: Medium 9.3% openai.com for GPT-5.6 Luna (medium) on DeepSWE 1.1 (opens in a new tab) DeepSWE Pass@1 Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on DeepSWE 1.1 DeepSWE 1.1 Effort: High 42.4% openai.com for GPT-5.6 Luna (high) on DeepSWE 1.1 (opens in a new tab) DeepSWE Pass@1 Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on DeepSWE 1.1 DeepSWE 1.1 Effort: xHigh 56.2% openai.com for GPT-5.6 Luna (xhigh) on DeepSWE 1.1 (opens in a new tab) DeepSWE Pass@1 Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on DeepSWE 1.1 DeepSWE 1.1 Effort: Max 62.2% openai.com for GPT-5.6 Luna (max) on DeepSWE 1.1 (opens in a new tab) DeepSWE Pass@1 Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on DeepSWE 1.1 DeepSWE 1.1 Effort: Max 67.0% deepswe.datacurve.ai for GPT-5.6 Luna (max) on DeepSWE 1.1 (opens in a new tab) Archived copy (opens in a new tab) DeepSWE Pass@1 Reported September 22, 2026 Benchmark leaderboard Datacurve Independent Record for GPT-5.6 Luna on DeepSWE 1.1 DeepSWE 1.1 67.2% openai.com for GPT-5.6 Luna on DeepSWE 1.1 (opens in a new tab) DeepSWE Pass@1 Reported July 9, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on DeepSWE 1.1 DeepSWE 1.1 — Mercor mini-swe-agent, 500 steps Effort: Max Configuration: Mercor mini-swe-agent, 500 steps, 2 hours 64.3% mercor.com for GPT-5.6 Luna (max) on DeepSWE 1.1 — Mercor mini-swe-agent, 500 steps (opens in a new tab) Archived copy (opens in a new tab) DeepSWE Pass@1 Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on DeepSWE 1.1 — Mercor mini-swe-agent, 500 steps Finance Agent Benchmark 2 — October 2026 evaluation Effort: Max 55.0% vals.ai for GPT-5.6 Luna (max) on Finance Agent Benchmark 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) Finance Agent Accuracy Reported October 6, 2026 Benchmark leaderboard Vals AI Independent Record for GPT-5.6 Luna on Finance Agent Benchmark 2 — October 2026 evaluation GDP.pdf 22.7% openai.com for GPT-5.6 Luna on GDP.pdf GDP.pdf (opens in a new tab) GDP.pdf All Pass Rate Reported July 9, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on GDP.pdf GDP.pdf GPQA Diamond 92.3% openai.com for GPT-5.6 Luna on Graduate-Level Google-Proof Q&A Diamond (opens in a new tab) GPQA Diamond Accuracy Reported July 9, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on Graduate-Level Google-Proof Q&A Diamond GPQA Diamond — Epoch AI harness Effort: None Configuration: Epoch AI harness 63.6% epoch.ai for GPT-5.6 Luna (none) on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) GPQA Diamond Accuracy Reported October 7, 2026 Evaluated August 7, 2026 at 12:35 AM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.6 Luna on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness GPQA Diamond — Epoch AI harness Effort: Low Configuration: Epoch AI harness 82.3% epoch.ai for GPT-5.6 Luna (low) on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) GPQA Diamond Accuracy Reported October 7, 2026 Evaluated August 7, 2026 at 12:08 AM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.6 Luna on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness GPQA Diamond — Epoch AI harness Effort: Max Configuration: Epoch AI harness 91.6% epoch.ai for GPT-5.6 Luna (max) on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) GPQA Diamond Accuracy Reported October 7, 2026 Evaluated July 9, 2026 at 1:36 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.6 Luna on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness GPQA Diamond — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 91.8% mercor.com for GPT-5.6 Luna (max) on Graduate-Level Google-Proof Q&A Diamond — Mercor single-shot (opens in a new tab) Archived copy (opens in a new tab) GPQA Diamond Accuracy Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on Graduate-Level Google-Proof Q&A Diamond — Mercor single-shot GPQA Diamond — Vals AI harness Effort: Max Configuration: Vals AI harness: mean of zero-shot and few-shot CoT 91.7% vals.ai for GPT-5.6 Luna (max) on Graduate-Level Google-Proof Q&A Diamond — Vals AI harness (opens in a new tab) Archived copy (opens in a new tab) GPQA Diamond Accuracy Reported September 1, 2026 Benchmark leaderboard Vals AI Independent Record for GPT-5.6 Luna on Graduate-Level Google-Proof Q&A Diamond — Vals AI harness HLAB October 2026 evaluation Effort: Max 1.3% vals.ai for GPT-5.6 Luna (max) on Harvey's Legal Agent Benchmark October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) HLAB Task Pass Rate Reported October 6, 2026 Benchmark leaderboard Vals AI Independent Record for GPT-5.6 Luna on Harvey's Legal Agent Benchmark October 2026 evaluation Humanity's Last Exam Text only — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 39.6% mercor.com for GPT-5.6 Luna (max) on Humanity's Last Exam Text only — Mercor single-shot (opens in a new tab) Archived copy (opens in a new tab) Humanity's Last Exam Accuracy Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on Humanity's Last Exam Text only — Mercor single-shot MedXpertQA MM — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 70.2% mercor.com for GPT-5.6 Luna (max) on MedXpertQA MM — Mercor single-shot (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on MedXpertQA MM — Mercor single-shot MMLU-Pro Original — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 86.5% mercor.com for GPT-5.6 Luna (max) on MMLU-Pro Original — Mercor single-shot (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on MMLU-Pro Original — Mercor single-shot MMLU-Pro Original — Vals AI harness Effort: Max Configuration: Vals AI harness 86.0% vals.ai for GPT-5.6 Luna (max) on MMLU-Pro Original — Vals AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported September 1, 2026 Benchmark leaderboard Vals AI Independent Record for GPT-5.6 Luna on MMLU-Pro Original — Vals AI harness MMMU-Pro 1,730 questions — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 79.1% mercor.com for GPT-5.6 Luna (max) on MMMU-Pro 1,730 questions — Mercor single-shot (opens in a new tab) Archived copy (opens in a new tab) MMMU-Pro accuracy Setting: Not stated Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on MMMU-Pro 1,730 questions — Mercor single-shot MMMU-Pro No tools Configuration: No tools 78.4% openai.com for GPT-5.6 Luna on MMMU-Pro No tools (opens in a new tab) MMMU-Pro accuracy Setting: Not stated Reported July 9, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on MMMU-Pro No tools MMMU-Pro Vals AI harness Effort: Max Configuration: Vals AI harness 85.0% vals.ai for GPT-5.6 Luna (max) on MMMU-Pro Vals AI harness (opens in a new tab) Archived copy (opens in a new tab) MMMU-Pro accuracy Setting: Standard (4 options) Reported September 1, 2026 Benchmark leaderboard Vals AI Independent Record for GPT-5.6 Luna on MMMU-Pro Vals AI harness MMMU-Pro With tools Configuration: With tools 79.5% openai.com for GPT-5.6 Luna on MMMU-Pro With tools (opens in a new tab) MMMU-Pro accuracy Setting: Not stated Reported July 9, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on MMMU-Pro With tools OSWorld 2.0 v2026.08.08 Offline — Partial Effort: Low 12.0% openai.com for GPT-5.6 Luna (low) on OSWorld 2.0 v2026.08.08 Offline — Partial (opens in a new tab) OSWorld Partial Score Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on OSWorld 2.0 v2026.08.08 Offline — Partial OSWorld 2.0 v2026.08.08 Offline — Partial Effort: Medium 22.7% openai.com for GPT-5.6 Luna (medium) on OSWorld 2.0 v2026.08.08 Offline — Partial (opens in a new tab) OSWorld Partial Score Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on OSWorld 2.0 v2026.08.08 Offline — Partial OSWorld 2.0 v2026.08.08 Offline — Partial Effort: High 35.9% openai.com for GPT-5.6 Luna (high) on OSWorld 2.0 v2026.08.08 Offline — Partial (opens in a new tab) OSWorld Partial Score Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on OSWorld 2.0 v2026.08.08 Offline — Partial OSWorld 2.0 v2026.08.08 Offline — Partial Effort: xHigh 48.0% openai.com for GPT-5.6 Luna (xhigh) on OSWorld 2.0 v2026.08.08 Offline — Partial (opens in a new tab) OSWorld Partial Score Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on OSWorld 2.0 v2026.08.08 Offline — Partial OSWorld 2.0 v2026.08.08 Offline — Partial Effort: Max 52.7% openai.com for GPT-5.6 Luna (max) on OSWorld 2.0 v2026.08.08 Offline — Partial (opens in a new tab) OSWorld Partial Score Reported September 22, 2026 Launch post OpenAI Self-reported Record for GPT-5.6 Luna on OSWorld 2.0 v2026.08.08 Offline — Partial SimpleQA Verified Original — Epoch AI harness Effort: Max Configuration: Epoch AI harness 41.0% epoch.ai for GPT-5.6 Luna (max) on SimpleQA Verified Original — Epoch AI harness (opens in a new tab) Archived copy (opens in a new tab) Accuracy Reported October 7, 2026 Evaluated August 10, 2026 at 11:44 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.6 Luna on SimpleQA Verified Original — Epoch AI harness SWE Atlas Codebase QnA — Mercor mini-swe-agent, 250 steps Effort: Max Configuration: Mercor mini-swe-agent, 250 steps, 1 hour 46.0% mercor.com for GPT-5.6 Luna (max) on SWE Atlas Codebase QnA — Mercor mini-swe-agent, 250 steps (opens in a new tab) Archived copy (opens in a new tab) Mean pass@1 Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on SWE Atlas Codebase QnA — Mercor mini-swe-agent, 250 steps SWE-bench Multilingual — Mercor mini-swe-agent, 1000 steps Effort: Max Configuration: Mercor mini-swe-agent, 1000 steps, 3 hours 92.4% mercor.com for GPT-5.6 Luna (max) on SWE-bench Multilingual — Mercor mini-swe-agent, 1000 steps (opens in a new tab) Archived copy (opens in a new tab) Resolved Tasks Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on SWE-bench Multilingual — Mercor mini-swe-agent, 1000 steps SWE-bench Verified — Mercor mini-swe-agent, 1000 steps Effort: Max Configuration: Mercor mini-swe-agent, 1000 steps, 3 hours 76.2% mercor.com for GPT-5.6 Luna (max) on SWE-bench Verified — Mercor mini-swe-agent, 1000 steps (opens in a new tab) Archived copy (opens in a new tab) Resolved Tasks Reported October 7, 2026 Benchmark leaderboard Mercor Independent Record for GPT-5.6 Luna on SWE-bench Verified — Mercor mini-swe-agent, 1000 steps