Finance Agent Benchmark 2 — October 2026 evaluation Effort: xHigh 45.4% vals.ai for GPT-5.4 mini (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 GPT-5.4 mini on Finance Agent Benchmark 2 — October 2026 evaluation GPQA Diamond — Epoch AI harness Effort: None Configuration: Epoch AI harness 64.1% epoch.ai for GPT-5.4 mini (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 12:46 AM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.4 mini on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness GPQA Diamond — Epoch AI harness Effort: High Configuration: Epoch AI harness 83.6% epoch.ai for GPT-5.4 mini (high) 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 April 15, 2026 at 2:03 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.4 mini on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness GPQA Diamond — Epoch AI harness Effort: xHigh Configuration: Epoch AI harness 86.9% epoch.ai for GPT-5.4 mini (xhigh) 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 1:00 AM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.4 mini on Graduate-Level Google-Proof Q&A Diamond — Epoch AI harness GPQA Diamond — Vals AI harness Effort: xHigh Configuration: Vals AI harness: mean of zero-shot and few-shot CoT 83.1% vals.ai for GPT-5.4 mini (xhigh) 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-5.4 mini on Graduate-Level Google-Proof Q&A Diamond — Vals AI harness HLAB October 2026 evaluation Effort: xHigh 0.0% vals.ai for GPT-5.4 mini (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 GPT-5.4 mini on Harvey's Legal Agent Benchmark October 2026 evaluation MMLU-Pro Original — Vals AI harness Effort: xHigh Configuration: Vals AI harness 84.6% vals.ai for GPT-5.4 mini (xhigh) 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-5.4 mini on MMLU-Pro Original — Vals AI harness MMMU-Pro Vals AI harness Effort: xHigh Configuration: Vals AI harness 79.2% vals.ai for GPT-5.4 mini (xhigh) 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-5.4 mini on MMMU-Pro Vals AI harness SimpleQA Verified Original — Epoch AI harness Effort: High Configuration: Epoch AI harness 29.4% epoch.ai for GPT-5.4 mini (high) 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 27, 2026 at 7:28 PM UTC Benchmark leaderboard Epoch AI Independent Record for GPT-5.4 mini on SimpleQA Verified Original — Epoch AI harness SWE-bench Verified — Vals AI mini-swe-agent Effort: xHigh Configuration: mini-swe-agent harness 73.0% vals.ai for GPT-5.4 mini (xhigh) on SWE-bench Verified — Vals AI mini-swe-agent (opens in a new tab) Archived copy (opens in a new tab) Resolved Tasks Reported September 1, 2026 Benchmark leaderboard Vals AI Independent Record for GPT-5.4 mini on SWE-bench Verified — Vals AI mini-swe-agent Terminal-Bench 2.0 — Vals AI Terminus 2 Effort: High Configuration: Terminus-2 harness 44.9% vals.ai for GPT-5.4 mini (high) on Terminal-Bench 2.0 — Vals AI Terminus 2 (opens in a new tab) Archived copy (opens in a new tab) Terminal-Bench Accuracy Reported June 4, 2026 Benchmark leaderboard Vals AI Independent Record for GPT-5.4 mini on Terminal-Bench 2.0 — Vals AI Terminus 2 Terminal-Bench 2.1 — Vals AI Terminus 2 Effort: High Configuration: Terminus-2 harness 54.7% vals.ai for GPT-5.4 mini (high) 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 GPT-5.4 mini on Terminal-Bench 2.1 — Vals AI Terminus 2 Terminal-Bench 4.0 — Vals AI mini-swe-agent Effort: xHigh Configuration: mini-swe-agent harness 2.5% vals.ai for GPT-5.4 mini (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 GPT-5.4 mini on Terminal-Bench 4.0 — Vals AI mini-swe-agent Vals Index 2.1 Effort: xHigh 33.2% vals.ai for GPT-5.4 mini (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 GPT-5.4 mini on Vals Index 2.1 Vibe Code Bench 1.1 — OpenHands, October 2026 evaluation Effort: xHigh Configuration: OpenHands harness 48.0% vals.ai for GPT-5.4 mini (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 GPT-5.4 mini on Vibe Code Bench 1.1 — OpenHands, October 2026 evaluation