APEX-Agents Original Effort: xHigh 58.6% mercor.com for Muse Spark 1.3 (xhigh) 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 Muse Spark 1.3 on APEX-Agents Original APEX-Agents Original Effort: Max 47.6% mercor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on APEX-Agents Original AutomationBench 1.0.6 Effort: Max 20.7% zapier.com for Muse Spark 1.3 (max) 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 Muse Spark 1.3 on AutomationBench 1.0.6 Chartography October 2026 leaderboard Effort: xHigh 27.6% surgehq.ai for Muse Spark 1.3 (xHigh) 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 Muse Spark 1.3 on Chartography October 2026 leaderboard CharXiv Descriptive and reasoning — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 93.9% mercor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on CharXiv Descriptive and reasoning — Mercor single-shot CursorBench 4.0 Effort: Low 29.3% cursor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on CursorBench 4.0 CursorBench 4.0 Effort: Medium 32.6% cursor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on CursorBench 4.0 CursorBench 4.0 Effort: High 33.4% cursor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on CursorBench 4.0 CursorBench 4.0 Effort: xHigh 37.5% cursor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on CursorBench 4.0 CursorBench 4.0 Effort: Max 41.6% cursor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on CursorBench 4.0 CWE-bench 1 — OpenCode Effort: High Configuration: OpenCode harness 55.0% cwe-bench.com for Muse Spark 1.3 (high) on CWE-bench 1 — OpenCode (opens in a new tab) Archived copy (opens in a new tab) CWE-bench Programmatic Pass@1 Reported October 7, 2026 Benchmark leaderboard Collinear AI Independent Record for Muse Spark 1.3 on CWE-bench 1 — OpenCode DeepSearchQA 900-prompt set Effort: Max 90.3% dev.meta.ai for Muse Spark 1.3 (max) on DeepSearchQA 900-prompt set (opens in a new tab) F1 score Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on DeepSearchQA 900-prompt set DeepSWE 1.1 — mini-swe-agent Effort: Max Configuration: mini-swe-agent harness 75.4% dev.meta.ai for Muse Spark 1.3 (max) on DeepSWE 1.1 — mini-swe-agent (opens in a new tab) DeepSWE Pass@1 Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on DeepSWE 1.1 — mini-swe-agent Finance Agent Benchmark 2 — October 2026 evaluation Effort: xHigh 58.9% vals.ai for Muse Spark 1.3 (xhigh) 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 Muse Spark 1.3 on Finance Agent Benchmark 2 — October 2026 evaluation GPQA Diamond — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 91.3% mercor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on Graduate-Level Google-Proof Q&A Diamond — Mercor single-shot HLAB October 2026 evaluation Effort: xHigh 22.9% vals.ai for Muse Spark 1.3 (xhigh) 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 Muse Spark 1.3 on Harvey's Legal Agent Benchmark October 2026 evaluation JobBench Main 65 tasks Effort: Max 64.9% dev.meta.ai for Muse Spark 1.3 (max) on JobBench Main 65 tasks (opens in a new tab) Mean rubric score Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on JobBench Main 65 tasks MedXpertQA MM — Mercor single-shot Effort: Max Configuration: Mercor single-shot agent 76.3% mercor.com for Muse Spark 1.3 (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 Muse Spark 1.3 on MedXpertQA MM — Mercor single-shot MRCR v2 8-needle 256K–512K (o200k_base) Effort: Max 98.5% dev.meta.ai for Muse Spark 1.3 (max) on MRCR v2 8-needle 256K–512K (o200k_base) (opens in a new tab) Mean sequence-matcher ratio Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on MRCR v2 8-needle 256K–512K (o200k_base) MRCR v2 8-needle 512K–1M (o200k_base) Effort: Max 98.1% dev.meta.ai for Muse Spark 1.3 (max) on MRCR v2 8-needle 512K–1M (o200k_base) (opens in a new tab) Mean sequence-matcher ratio Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on MRCR v2 8-needle 512K–1M (o200k_base) OSWorld 2.0 v2026.08.08 — Binary Effort: Max 32.0% dev.meta.ai for Muse Spark 1.3 (max) on OSWorld 2.0 v2026.08.08 — Binary (opens in a new tab) OSWorld Strict Score Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on OSWorld 2.0 v2026.08.08 — Binary OSWorld 2.0 v2026.08.08 — Partial Effort: Max 66.9% dev.meta.ai for Muse Spark 1.3 (max) on OSWorld 2.0 v2026.08.08 — Partial (opens in a new tab) OSWorld Partial Score Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on OSWorld 2.0 v2026.08.08 — Partial Riemann-bench October 2026 leaderboard Effort: xHigh 28.0% surgehq.ai for Muse Spark 1.3 (xHigh) on Riemann-bench October 2026 leaderboard (opens in a new tab) Archived copy (opens in a new tab) Riemann-bench Pass@1 Reported October 7, 2026 Benchmark leaderboard Surge AI Independent Record for Muse Spark 1.3 on Riemann-bench October 2026 leaderboard SWE Atlas Codebase QnA — Public; mini-swe-agent Effort: Max Configuration: mini-swe-agent harness 59.4% dev.meta.ai for Muse Spark 1.3 (max) on SWE Atlas Codebase QnA — Public; mini-swe-agent (opens in a new tab) Mean pass@1 Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on SWE Atlas Codebase QnA — Public; mini-swe-agent Terminal-Bench 2.1 Effort: Max 88.8% dev.meta.ai for Muse Spark 1.3 (max) on Terminal-Bench 2.1 (opens in a new tab) Terminal-Bench Accuracy Reported September 2, 2026 Model page Meta Self-reported Record for Muse Spark 1.3 on Terminal-Bench 2.1 Terminal-Bench 2.1 — Vals AI Terminus 2 Effort: xHigh Configuration: Terminus-2 harness 72.3% vals.ai for Muse Spark 1.3 (xhigh) on Terminal-Bench 2.1 — Vals AI Terminus 2 (opens in a new tab) Archived copy (opens in a new tab) Terminal-Bench Accuracy Reported September 28, 2026 Benchmark leaderboard Vals AI Independent Record for Muse Spark 1.3 on Terminal-Bench 2.1 — Vals AI Terminus 2 Terminal-Bench 4.0 — Muse Code Effort: xHigh Configuration: Muse Code harness 14.6% tbench.ai for Muse Spark 1.3 (xhigh) on Terminal-Bench 4.0 — Muse Code (opens in a new tab) Archived copy (opens in a new tab) Terminal-Bench Accuracy Reported September 2, 2026 Benchmark leaderboard Terminal-Bench Independent Terminal-Bench Team Record for Muse Spark 1.3 on Terminal-Bench 4.0 — Muse Code Terminal-Bench 4.0 — Vals AI mini-swe-agent Effort: xHigh Configuration: mini-swe-agent harness 10.6% vals.ai for Muse Spark 1.3 (xhigh) on Terminal-Bench 4.0 — Vals AI mini-swe-agent (opens in a new tab) Archived copy (opens in a new tab) Terminal-Bench Accuracy Reported October 6, 2026 Benchmark leaderboard Vals AI Independent Record for Muse Spark 1.3 on Terminal-Bench 4.0 — Vals AI mini-swe-agent Vals Index 2.1 Effort: xHigh 53.2% vals.ai for Muse Spark 1.3 (xhigh) on Vals Index 2.1 (opens in a new tab) Archived copy (opens in a new tab) Vals Index GDP-weighted Accuracy Reported October 6, 2026 Benchmark leaderboard Vals AI Independent Record for Muse Spark 1.3 on Vals Index 2.1 Vibe Code Bench 1.1 — OpenHands, October 2026 evaluation Effort: xHigh Configuration: OpenHands harness 82.9% vals.ai for Muse Spark 1.3 (xhigh) on Vibe Code Bench 1.1 — OpenHands, October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) Vibe Code Bench Score Reported October 6, 2026 Benchmark leaderboard Vals AI Independent Record for Muse Spark 1.3 on Vibe Code Bench 1.1 — OpenHands, October 2026 evaluation