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Payment ops

The best open source models for partner-bank RFIs

For partner-bank RFIs, our top pick is Kimi K3 from Moonshot AI. Native text, image, and video input with a 1M-token context, so it reads the whole RFI packet in one pass. GLM-5.3 Flash is a close second, and MiniMax M3 rounds out the list.

Partner banks send requests for information, hold-harmless letters, and return-of-funds cases as emails and PDFs. An agent has to read the documents, pull the payment and KYC records, and draft a reply, so document and image understanding matter as much as reasoning.

Updated

What matters for partner-bank RFIs

  • Reads PDFs, scans, and screenshots
  • Long context for full case files
  • Reliable drafting for an approval step

Our picks

1Moonshot AI logo

Kimi K3

Moonshot AI · Kimi K3 License

Native text, image, and video input with a 1M-token context, so it reads the whole RFI packet in one pass.

The first open 3T-class model, natively multimodal with a 1M-token context.

Context1M tokens
Parameters2.8T

Input: text, image, video

Harnesses in Runtime

Claude CodeOpenCodeCline
2Z.ai logo

GLM-5.3 Flash

Z.ai · MIT

Image input at 18B active parameters and an MIT license, a cost-effective default for high RFI volume.

A natively multimodal GLM that Z.ai says beats GLM-5.2 at one-tenth the price.

Context1M tokens
Parameters320B
Active18B

Input: text, image

Harnesses in Runtime

Claude CodeOpenCodeCline
3MiniMax logo

MiniMax M3

MiniMax · MiniMax Community License

Multimodal with sparse attention built for million-token contexts, useful for long correspondence threads.

A natively multimodal model with sparse attention built for million-token contexts.

Context1M tokens
Parameters428B
Active23B

Input: text, image, video

Harnesses in Runtime

Claude CodeOpenCodeCline

Put a partner-bank RFIs agent to work

01

Write the SOP as a skill

Turn the steps your team already follows into a skill the agent reads before every run.

02

Pick and test the model

Run two or three of these models against past cases. Evals show which one passes at the lowest cost.

03

Run it in your cloud

The agent works on its own computer in your VPC, with role-based access and an approval before sensitive actions.

Questions about models for partner-bank RFIs

What is the best open source model for partner-bank RFIs?

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For partner-bank RFIs, our top pick is Kimi K3 from Moonshot AI. Native text, image, and video input with a 1M-token context, so it reads the whole RFI packet in one pass. GLM-5.3 Flash is a close second, and MiniMax M3 rounds out the list.

What matters when choosing a model for partner-bank RFIs?

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Reads PDFs, scans, and screenshots. Long context for full case files. Reliable drafting for an approval step. Test two or three candidates against your own past cases before you commit, and keep a human approval on any step that moves money or changes a customer's status.

Can I run an open source model for partner-bank RFIs without sending data to a third party?

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Yes. Download the weights and serve them with vLLM or SGLang in your own cloud, or use Amazon Bedrock or Google Vertex AI in your account. With Runtime, the agent's computer also runs in your VPC, so card data and PII stay in your environment.

Which of these models can I use commercially?

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GLM-5.3 Flash (MIT) is permissive and fine for commercial use. Kimi K3 (Kimi K3 License), MiniMax M3 (MiniMax Community License) use custom licenses, so read the terms first.