| #1 | gemini-3-pro-preview Strong on FACTS Benchmark Suite facts_grounding_score_pct (88%) and Vals GPQA overall_accuracy_pct (94%) | | 46.1% | 25 | FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #2 | gemini-2.5-pro Strong on FACTS Benchmark Suite facts_grounding_score_pct (100%) and Vectara HHEM Leaderboard overall_hallucination_error_pct (76%) | | 44.2% | 26 | FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) Vectara HHEM Leaderboard overall_hallucination_error_pct (Mar 12, 2026) |
| #3 | google/gemini-3.1-pro-preview Strong on Vals GPQA overall_accuracy_pct (100%) and Vals MedCode overall_accuracy_pct (100%) | | 33.3% | 20 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals MedCode overall_accuracy_pct (Mar 16, 2026) |
| #4 | gpt-4.1-20250414 | | 40.7% | 21 | MMLongBench-Doc Leaderboard acc_score_pct (Mar 16, 2026) Vectara HHEM Leaderboard overall_hallucination_error_pct (Mar 12, 2026) |
| #5 | gpt-5-mini-2025-08-07 | | 40.6% | 21 | FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #6 | anthropic/claude-sonnet-4.6 | | 32.8% | 19 | Vals Finance Agent overall_accuracy_pct (Mar 16, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #7 | claude-opus-4-5-20251101 | | 35.5% | 19 | FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #8 | gpt-5-2025-08-07 | | 31.4% | 18 | FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #9 | openai/gpt-5.4-2026-03-05 | | 30.7% | 19 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vectara HHEM Leaderboard overall_hallucination_error_pct (Mar 12, 2026) |
| #10 | Grok-4-0709 | | 34.3% | 20 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) |
| #11 | gemini-3-flash-preview | | 30.5% | 19 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) |
| #12 | claude-sonnet-4-20250514 | | 38.0% | 20 | FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) Vectara HHEM Leaderboard overall_hallucination_error_pct (Mar 12, 2026) |
| #13 | google/gemini-3.1-flash-lite-preview | | 30.2% | 18 | Vectara HHEM Leaderboard overall_hallucination_error_pct (Mar 12, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #14 | gpt-5.1-2025-11-13 | | 31.4% | 18 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals Finance Agent overall_accuracy_pct (Mar 16, 2026) |
| #15 | gemini-2.5-flash | | 31.9% | 17 | FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) Vectara HHEM Leaderboard overall_hallucination_error_pct (Mar 12, 2026) |
| #16 | xai-org/grok-4-fast-reasoning | | 30.7% | 19 | Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #17 | gpt-5.2-2025-12-11 | | 21.0% | 15 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) |
| #18 | anthropic/claude-opus-4-6-thinking | | 21.0% | 15 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) |
| #19 | xai-org/grok-4-1-fast-reasoning | | 30.7% | 19 | Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #20 | kimi/kimi-k2.5-thinking | | 26.3% | 17 | Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) Vals GPQA overall_accuracy_pct (Mar 16, 2026) |
| #21 | anthropic/claude-opus-4-5-20251101-thinking | | 21.0% | 15 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals Finance Agent overall_accuracy_pct (Mar 16, 2026) |
| #22 | x-ai/grok-3 | | 23.1% | 14 | Vectara HHEM Leaderboard overall_hallucination_error_pct (Mar 12, 2026) Vectara HHEM Leaderboard science_hallucination_error_pct (Mar 12, 2026) |
| #23 | anthropic/claude-opus-4-1-20250805 | | 29.5% | 15 | FACTS Benchmark Suite facts_grounding_score_pct (Mar 16, 2026) Vectara HHEM Leaderboard overall_hallucination_error_pct (Mar 12, 2026) |
| #24 | anthropic/claude-sonnet-4-5-20250929-thinking | | 21.0% | 15 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals Finance Agent overall_accuracy_pct (Mar 16, 2026) |
| #25 | o3-20250416 | | 25.6% | 15 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) |
| #26 | mistralai/mistral-large-2512 | | 27.2% | 17 | Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) Vectara HHEM Leaderboard overall_answer_rate_pct (Mar 12, 2026) |
| #27 | grok/grok-4.20-beta-0309-reasoning | | 21.0% | 15 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) |
| #29 | zai/glm-5-thinking | | 19.9% | 13 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) |
| #30 | xai-org/grok-4-1-fast-non-reasoning | | 30.2% | 18 | Vals Finance Agent overall_accuracy_pct (Mar 16, 2026) Vectara HHEM Leaderboard overall_answer_rate_pct (Mar 12, 2026) |
| #31 | alibaba/qwen3.5-flash | | 20.5% | 14 | Vals GPQA overall_accuracy_pct (Mar 16, 2026) Vals CorpFin v2 overall_accuracy_pct (Mar 16, 2026) |