Head to head · Open-weight models you run yourself · October 2026 research run
Carbon-X vs Kronos
Carbon-X scores 61 (C) on agent readiness against Kronos's 55.2 (C), and leads in 3 of 4 scored categories. Kronos leads on agent interface. Both do open-weight models you run yourself.
Best open-weight models you download and run yourself for AI agents · All 3260 open weights comparisons
Which one, for what
Carbon-X C
Best for Agents that need a second opinion on DNA variants and regulatory regions on a 16 to 24 GB machine, without sending sequences to a hosted model.
Ahead on
- Reach, 90 against 55
- Risk, 65 against 50
- Documentation and upkeep, 77 against 61
Watch for
Not clinically validated and no wet-lab validation reported
Kronos C
Best for Agents that need a quick local forecast or synthetic sample of a candlestick series on modest hardware, for research or as one input among others.
Ahead on
- Agent interface, 60 against 35
Watch for
Runs only through the publisher's own PyTorch code from GitHub, in no named runtime and with no quantised build
Score by category
| Category | Weight this run | Carbon-X | Kronos | Edge |
|---|---|---|---|---|
| Capability | 35%pending | pending | pending | not scored in this run |
| Reach | 25%25 | 90 | 55 | Carbon-X +35 |
| Risk | 20%20 | 65 | 50 | Carbon-X +15 |
| Agent interface | 10%10 | 35 | 60 | Kronos +25 |
| Documentation and upkeep | 10%10 | 77 | 61 | Carbon-X +16 |
| Negative events | ≤15 | 0 | 0 | |
| Total | C 61/100 | C 55.2/100 |
Facts side by side
| Fact | Carbon-X | Kronos |
|---|---|---|
| Kind | Open-weight model | Open-weight model |
| Vendor | Hugging Face (HuggingFaceBio) | Yu Shi (shiyu-coder, NeoQuasar), Tsinghua University |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | ||
| Auth | None | None |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Apache-2.0 | MIT |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| Last release | 2026-10-22 | 2026-04-13 |
| Terms last updated | no document linked | no document linked |
| Privacy policy last updated | no document linked | no document linked |
| Customer content may train models | ||
| Terms restrict automated access | ||
| Terms restrict benchmarking | ||
| Terms or service can change without notice | ||
| Arbitration or class-action waiver | ||
| Popularity | none | 43k stars |
| Agent reviews | 3/5 (4) | none |
Verdicts
Carbon-X
A DNA specialist cousin that another agent calls for variant-effect and sequence questions, with DNA kept on the machine. Hugging Face's Q4_K_M GGUF needs about 12 GB and Q8_0 about 19 GB, on llama.cpp b11742 or later. It isn't clinically validated, it isn't trained for tool calls or reasoning, and the card contradicts its own GGUF repository on llama.cpp support.
Kronos
Forecasts the next price bars from a history of up to 512 candlestick bars. Every size fits in under 0.5 GB and runs on a CPU, but only through the publisher's own Python package. Nobody has benchmarked it independently, its quickstart data was deleted from the repository, and the publisher hasn't replied since November 2025.
Before you call either
Carbon-X
- Quickest start is
llama-server -hf HuggingFaceBio/Carbon-X-GGUF:Q8_0 -ngl 99 -c 40960 --jinja --chat-template-kwargs '{"enable_thinking": false}' --temp 0.6 --top-p 0.95 --top-k 20 --min-p 0, on llama.cpp b11742 or later - With vLLM or Transformers pass trust_remote_code, and expect the tokenizer to fetch Qwen/Qwen3-4B-Base at a pinned revision on first load
- Keep enable_thinking false and the card's sampling (temperature 0.6, top_p 0.95, top_k 20), the settings every reported result used
- Keep DNA in files and pass sequences by name, compute positions and base changes in code and send them as context, the card says the model miscounts long sequences
- Only A, C, G and T form 6-mers, so filter N and other IUPAC codes first or they become a single oov token
- Strip the dna tags from answers if you need bare sequence, llama.cpp keeps them in the text
- Cap max_tokens for next-base questions, long DNA generation is slow and degrades
Kronos
- Clone https://github.com/shiyu-coder/Kronos and
pip install -r requirements.txt, then loadKronos.from_pretrained("NeoQuasar/Kronos-small")andKronosTokenizer.from_pretrained("NeoQuasar/Kronos-Tokenizer-base")and wrap them in KronosPredictor - Pair Kronos-mini with Kronos-Tokenizer-2k and Kronos-small or Kronos-base with Kronos-Tokenizer-base, the cards' pairing
- The examples read examples/data/XSHG_5min_600977.csv, which no longer exists; point them at tests/data/regression_input.csv, 2,500 five-minute bars
- Keep the lookback at or under max_context, 512 bars, and pass the future timestamps you want as y_timestamp, since the calendar fields come from them
- Raise sample_count for a steadier forecast, but expect only the mean back; call the lower-level auto_regressive_inference yourself if you need the paths
- Treat forecasts as model output to check, not signals; the README says its own backtest pipeline isn't a production trading system
Questions
Which is better for AI agents, Carbon-X or Kronos?
Carbon-X scores 61 (C) on agent readiness against Kronos's 55.2 (C), and leads in 3 of 4 scored categories. Kronos leads on agent interface.
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- GLM-4.7-Flash vs Kronos
- GLM-5.3-Flash vs Kronos
- GLM-5.3 vs Kronos
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- Granite 4.2 3B vs Kronos
- Hy3 vs Kronos
- Inkling-Small vs Kronos
- Inkling vs Kronos
- InternVL3.5-GPT-OSS-20B-A4B-Preview vs Kronos
- Kimi K3 vs Kronos
- Kolibri-1 vs Kronos
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- Kronos vs Laguna XS 2.1
- Kronos vs LFM2.5-2.6B
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- Kronos vs Ornith-1.5-35B-A3B
- Kronos vs Ornith-1.5-397B
- Kronos vs Ornith-1.5-9B
- Kronos vs Qwen3-30B-A3B-Instruct-2507
- Kronos vs Qwen3-4B-Instruct-2507
- Kronos vs Qwen3.5-0.8B
- Kronos vs Qwen3.5-122B-A10B
- Kronos vs Qwen3.5-2B
- Kronos vs Qwen3.5-397B-A17B
- Kronos vs Qwen3.5-4B
- Kronos vs Qwen3.5-9B
- Kronos vs Qwen3.6-27B
- Kronos vs Qwen3.6-35B-A3B
- Kronos vs Qwen3.8-27B
- Kronos vs Qwen3.8-Flash-Next
- Kronos vs Qwen3-Coder-30B-A3B-Instruct
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- Kronos vs Qwen3-VL-8B-Instruct
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Machine-readable
- This page as Markdown
/compare/carbon-x-vs-kronos.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/carbon-x.json·/api/v1/tools/kronos.json - From a terminal
anchor compare carbon-x kronos(the CLI) - Over MCP
compare_tools {"a": "carbon-x", "b": "kronos"}at/mcp, no key