Mint-Agent: Introducing Finance-Native Agentic Foundation Models
Organizations: Mint Agent Team · Nanyang Technological University · Shanghai AI-Finance School, East China Normal University · Tsinghua University
Abstract
Financial agents must do more than recall domain knowledge: they must be both reliable, executing precise operations over grounded evidence, and executive, sustaining long-horizon research whose conclusions remain auditable. We present Mint-Agent, a family of finance-native agentic models designed around these two scales of financial intelligence. Mint-Agent is built upon three pillars: data, harness, and algorithm. Our data engine constructs clean, specialized tasks for atomic financial capabilities and long-horizon agentic execution from real-world financial sources. MintHarness enables stable interaction with open-ended environments and maintains auditable evidence trails across extended research trajectories. Our training recipe combines SFT, critical-step OPD, and RLVR to develop separate financial reasoning and agentic execution experts, which are then unified through model merging and multi-teacher on-policy distillation into compact, general-purpose financial agents. This pipeline yields two flagship models, Mint-Cu (9B) and Mint-Ag (27B). Across professional financial benchmarks, our models demonstrate two defining strengths: (1) Reliability: Mint-Ag achieves 98.33% on RFC-Bench, surpassing GPT-5.6-Sol and Claude-Opus-4.8 by 3.66 and 3.00 points; and (2) Executability: Mint-Cu reaches 69.86% on FinSearchComp T2, outperforming Agents-A1-35B and Nex-N2-mini by 22.83 and 12.78 points, while Mint-Ag achieves 76.00% and 60.49% on FinanceAgentBench v1.1 and v2, respectively. These results establish a path toward trustworthy financial intelligence in which domain expertise, long-horizon execution, and auditable evidence are jointly engineered as a unified foundation for frontier agentic models.
Figures & tables
| Source layer | Collection | Role |
| Disclosures | EDGAR and issuer archives | Grounded financial text and tables |
| Structured facts | XBRL records | Normalized reported values |
| Financial series | Exchange records and FRED | Market and macro observations |
| Definitions | Accounting taxonomies | Metric semantics and valid formulas |
| Model | BizFin- Bench | Finance Bench | RFC Bench | FinanceAgentBench | FinSearchComp | ||
| v1.1 | v2 | T2 | T3 | ||||
| Frontier models | |||||||
| Gemini-3.5-Flash | 50.71 | 85.33 | 92.33 | 62.00 | 36.53 | 44.19 | |
| Claude Opus 4.8 | 49.71 | 90.00 | 95.33 | 66.00 | 45.66 | 51.16 | |
| GPT-5.6-Sol | 51.57 | 86.67 | 94.67 | 66.00 | 41.10 | 50.58 | |
| GLM-5.2 | 47.57 | 88.00 | 94.33 | 58.00 | 68.49 | 34.88 | |
| Checkpoint | Finance Bench | BizFin Bench | FAB v1.1 | FinSearch T2 |
| Reasoning expert ( ) | 88.00 | 53.86 | — | — |
| Execution expert ( ) | — | — | 66.21 | 72.15 |
| TIES merge ( ) | 88.67 | 50.00 | 64.00 | 66.67 |
| MOPD ( ) | 90.00 | 53.86 | 68.00 | 69.86 |
Appendix figures & tables1 asset
Supplementary material from the paper’s appendix.
Appendix
LLM Agent Training
Large language model agent training teaches models to plan, use tools, and learn from multi-step interaction with environments.
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