# Mistral Large 4 vs Step 3.7 Flash (slim)

> Step 3.7 Flash scores 59.8 (C) to Mistral Large 4's 54.6 (C) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

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Step 3.7 Flash scores 59.8 (C) on agent readiness against Mistral Large 4's 54.6 (C), and leads in 1 of 4 scored categories. Mistral Large 4 leads on risk, agent interface and documentation and upkeep. Both do open-weight models you run yourself.

- Mistral Large 4: C 54.6, rank #128 of 160 open-weight models · https://www.anchorterminal.com/tools/mistral-large-4.min.md
- Step 3.7 Flash: C 59.8, rank #93 of 160 open-weight models · https://www.anchorterminal.com/tools/step-3-7-flash.min.md
- Mistral Large 4, good for Operators with an 8-GPU Blackwell or H200 node who want a frontier-sized open model for coding agents and defensive security, with a hosted twin on Mistral's API. Ahead on Risk, 75 against 45; Agent interface, 95 against 85; Documentation and upkeep, 64 against 39.
- Step 3.7 Flash, good for Teams with a GPU server or a provider account that want an open, long-context agent model with vision Ahead on Reach, 70 against 50.

| Category | Mistral Large 4 | Step 3.7 Flash |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 50 | 70 |
| Risk (20%) | 75 | 45 |
| Agent interface (10%) | 95 | 85 |
| Documentation and upkeep (10%) | 64 | 39 |

| Fact (where they differ) | Mistral Large 4 | Step 3.7 Flash |
| --- | --- | --- |
| Vendor | Mistral AI | StepFun |
| Licence | Mistral Ecosystem Open-Weight License (modified MIT) | Apache-2.0 (metadata and card; no LICENSE file) |
| Last release | 2026-10-29 | 2026-06-03 |

Why the edge:
- Risk, Mistral Large 4 +30: Mistral Large 4 75 (File safety scores 25, safetensors only and loaded by Transformers' own code with a Jinja template.); Step 3.7 Flash 45 (File safety 15, safetensors and GGUF only, no .bin, .pt or .pth files (25).)
- Documentation and upkeep, Mistral Large 4 +25: Mistral Large 4 64 (The card covers intended use, architecture, parameters, context and languages, and misses limitations and a cut-off (14).); Step 3.7 Flash 39 (Model card 14, Intended use, the architecture, the parameters, the context and the language (in the metadata) are on the card.)
- Reach, Step 3.7 Flash +20: Mistral Large 4 50 (Memory scores 0, since the smallest 4-bit build, Mistral's NVFP4, is 610 GB, about 732 GB with a fifth added, far above 256 GB.); Step 3.7 Flash 70 (Memory 5, the smallest build at 4 bits is StepFun's IQ4_XS GGUF, 104.99 GB with the 3.97 GB projector, and 108.96 GB × 1.2 = 130.8 GB, over what the reference m…)
- Agent interface, Mistral Large 4 +10: Mistral Large 4 95 (The chat template is in the repository (20).); Step 3.7 Flash 85 (Chat template 20, chat_template.jinja in the repository (5,723 characters).)