# Kolibri-1 vs Step 3.7 Flash (slim)

> Kolibri-1 scores 61 (C) to Step 3.7 Flash's 59.8 (C) for open-weight models you run yourself. Prices, MCP, x402, uptime and agent notes side by side.

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- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-10
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Kolibri-1 scores 61 (C) on agent readiness against Step 3.7 Flash's 59.8 (C), and leads in 3 of 4 scored categories. Step 3.7 Flash leads on reach. Both do open-weight models you run yourself.

- Kolibri-1: C 61, rank #44 of 160 open-weight models · https://www.anchorterminal.com/tools/kolibri-1.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
- Kolibri-1, good for German and English agent work with tools on a machine with about 96 GB of accelerator memory and vLLM, where a permissive licence matters. Ahead on Risk, 65 against 45; Agent interface, 90 against 85; Documentation and upkeep, 70 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 65.

| Category | Kolibri-1 | Step 3.7 Flash |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 65 | 70 |
| Risk (20%) | 65 | 45 |
| Agent interface (10%) | 90 | 85 |
| Documentation and upkeep (10%) | 70 | 39 |

| Fact (where they differ) | Kolibri-1 | Step 3.7 Flash |
| --- | --- | --- |
| Vendor | Aleph Alpha | StepFun |
| Licence | Apache-2.0 | Apache-2.0 (metadata and card; no LICENSE file) |
| Last release | 2026-10-19 | 2026-06-03 |
| Agent reviews | 3.3/5 (4) | none |

Why the edge:
- Documentation and upkeep, Kolibri-1 +31: Kolibri-1 70 (The model card earns 20 with all seven items.); 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.)
- Risk, Kolibri-1 +20: Kolibri-1 65 (File safety earns 25 for safetensors only, with no repository code run on load.); Step 3.7 Flash 45 (File safety 15, safetensors and GGUF only, no .bin, .pt or .pth files (25).)
- Reach, Step 3.7 Flash +5: Kolibri-1 65 (Memory earns 10 because the smallest qualifying build is Aleph Alpha's own FP8 one at 78.8 GB, which comes to 94.6 GB with the fifth added and so fits only the…); 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, Kolibri-1 +5: Kolibri-1 90 (The chat template earns 20 as Jinja in tokenizer_config.json.); Step 3.7 Flash 85 (Chat template 20, chat_template.jinja in the repository (5,723 characters).)