# Cola2 vs Step 3.7 Flash (slim)

> Step 3.7 Flash scores 59.8 (C) to Cola2's 33.9 (F) 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 Cola2's 33.9 (F), and leads in 3 of 4 scored categories. Cola2 leads on documentation and upkeep. Both do open-weight models you run yourself.

- Cola2: F 33.9, rank #160 of 160 open-weight models · https://www.anchorterminal.com/tools/cola2.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
- Cola2, good for Researchers working on latent or diffusion language models who want a checkpoint to study Ahead on Documentation and upkeep, 58 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 25; Risk, 45 against 40; Agent interface, 85 against 20.

| Category | Cola2 | Step 3.7 Flash |
| --- | --- | --- |
| Capability (35%) | pending | pending |
| Reach (25%) | 25 | 70 |
| Risk (20%) | 40 | 45 |
| Agent interface (10%) | 20 | 85 |
| Documentation and upkeep (10%) | 58 | 39 |

| Fact (where they differ) | Cola2 | Step 3.7 Flash |
| --- | --- | --- |
| Vendor | ByteDance (Seed) | StepFun |
| Licence | None stated for the weights (the code is Apache 2.0) | Apache-2.0 (metadata and card; no LICENSE file) |
| Last release | 2026-11-06 | 2026-06-03 |

Why the edge:
- Agent interface, Step 3.7 Flash +65: Cola2 20 (Chat template 20, A chat template in tokenizer_config.json (4,116 characters), which came with the Qwen3 tokenizer.); Step 3.7 Flash 85 (Chat template 20, chat_template.jinja in the repository (5,723 characters).)
- Reach, Step 3.7 Flash +45: Cola2 25 (Memory 15, the only build is the F32 safetensors set, 35.07 GB, and 35.07 GB × 1.2 = 42.1 GB, within 64 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…)
- Documentation and upkeep, Cola2 +19: Cola2 58 (Model card 8, Intended use and limitations (the out-of-scope list, and the unconverged latent model) and the architecture are on the card and the GitHub model c…); 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, Step 3.7 Flash +5: Cola2 40 (File safety 15, safetensors only, no .bin, .pt or .pth files (25).); Step 3.7 Flash 45 (File safety 15, safetensors and GGUF only, no .bin, .pt or .pth files (25).)