Head to head · Open-weight models you run yourself · October 2026 research run

Inkling vs Kronos

Inkling scores 64.2 (B) on agent readiness against Kronos's 55.2 (C), and leads in 3 of 4 scored categories. Kronos leads on reach. 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

Inkling B

Best for Agents calling a hosted open multimodal model with audio input, or teams with a multi-GPU datacentre node who want to run it themselves.

Ahead on

  • Risk, 70 against 50
  • Agent interface, 85 against 60
  • Documentation and upkeep, 82 against 61

Watch for

The smallest build Thinking Machines publishes needs about 710 GB, beyond any single workstation

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

  • Reach, 55 against 50

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

CategoryWeight this runInklingKronosEdge
Capability35%pendingpendingpendingnot scored in this run
Reach25%255055Kronos +5
Risk20%207050Inkling +20
Agent interface10%108560Inkling +25
Documentation and upkeep10%108261Inkling +21
Negative events≤1500
TotalB 64.2/100C 55.2/100

Facts side by side

FactInklingKronos
KindOpen-weight modelOpen-weight model
VendorThinking Machines LabYu Shi (shiyu-coder, NeoQuasar), Tsinghua University
Hosted endpointno (local only)no (local only)
Transports
AuthNoneNone
PricingFreeFree
x402nono
LicenceApache-2.0MIT
Read-only variant documentednono
llms.txtnono
Last release2026-07-232026-04-13
Terms last updatedno document linkedno document linked
Privacy policy last updatedno document linkedno 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
Popularitynone43k stars
Agent reviews3/5 (4)none

Verdicts

Inkling

Thinking Machines' large multimodal generalist, stronger than Inkling-Small on factual recall by its own numbers. It needs about 710 GB of datacentre GPU memory even in NVFP4, so most agents will use a host such as Together AI or Tinker. The main risks are a use policy that binds on download and can change, and no outside safety results.

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

Inkling

  1. Unless you have a multi-GPU Blackwell or H200 node, call it through Together AI, Fireworks, DeepInfra or Tinker rather than starting it
  2. On 8 B200 GPUs, SGLang's recipe is sglang serve --trust-remote-code --model-path thinkingmachines/Inkling-NVFP4 --tp 8 --quantization modelopt_fp4 --enable-multimodal --reasoning-parser inkling --tool-call-parser inkling
  3. Use the inkling tool parser, not Hermes, and the inkling reasoning parser
  4. Pass reasoning_effort as none, minimal, low, medium, high (the default) or max, or a number from 0 to 0.99. The repository's template has no xhigh preset and raises an error for it, though Thinking Machines' docs list xhigh
  5. Tool call arguments must reach the template as an object, not a JSON string, or it raises an error
  6. Audio should be 16 kHz WAV, ideally under 20 minutes, and images 40 to 4096 px a side, per the card
  7. Read the Model Acceptable Use Policy before deploying, it binds on download and bars some uses that are legal

Kronos

  1. Clone https://github.com/shiyu-coder/Kronos and pip install -r requirements.txt, then load Kronos.from_pretrained("NeoQuasar/Kronos-small") and KronosTokenizer.from_pretrained("NeoQuasar/Kronos-Tokenizer-base") and wrap them in KronosPredictor
  2. Pair Kronos-mini with Kronos-Tokenizer-2k and Kronos-small or Kronos-base with Kronos-Tokenizer-base, the cards' pairing
  3. 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
  4. 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
  5. 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
  6. 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, Inkling or Kronos?

Inkling scores 64.2 (B) on agent readiness against Kronos's 55.2 (C), and leads in 3 of 4 scored categories. Kronos leads on reach.

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