Model reference · open weights

Kimi-VL-Thinking-2506

Kimi-VL-Thinking-2506 is an open-weight language model from moonshotai, listed in the AxForge catalogue. AxForge can bring it up on EU-owned hardware for you on request — with the licence handled where one is required.

LLMs moonshotai 1 variants 33k downloads/mo
Request this model on EU hardware All served models Not on the shared API today — deployed on request.

About

What Kimi-VL-Thinking-2506 is

[!Note] This is an improved version of Kimi-VL-A3B-Thinking. Please consider using this updated model instead of the previous version. [!Note] Please visit our tech blog for recommended inference recipe of this model: Kimi-VL-A3B-Thinking-2506: A Quick Navigation 1. Introduction This is an updated version of Kimi-VL-A3B-Thinking, with following improved abilities: - It Thinks Smarter while Consuming Less Tokens: The 2506 version reaches better accuracy on multimodal reasoning benchmarks: 56.9 on MathVision (+20.1), 80.1 on MathVista (+8.4), 46.3 on MMMU-Pro (+3.3), 64.0 on MMMU (+2.1), while in average requires 20\% reduced thinking length. - It Sees Clearer with Thinking: Unlike the previous version that specializes on thinking tasks, the 2506 version can also achieve the same or even better ability on general visual perception and understanding, e.g. MMBench-EN-v1.1 (84.4), MMStar (70.4), RealWorldQA (70.0), MMVet (78.4), surpassing or matching abilties of our non-thinking model (Kimi-VL-A3B-Instruct). - It Extends to Video Scenarios: The new 2506 version also improves on video reasoning and understanding benchmarks. It sets new state-of-the-art for open-source models on VideoMMMU (65.2), while also retains good ability on general video understanding (71.9 on Video-MME, matching Kimi-VL-A3B-Instruct). - It Extends to Higher Resolution: The new 2506 version supports 3.2 million total pixels in a single image, 4X compared to the previous version. This leads to non-trivial improvements on high-resolution perception and OS-agent grounding benchmarks: 83.2 on V Benchmark (without extra tools), 52.8 on ScreenSpot-Pro, 52.5 on OSWorld-G (full set with refusal). 2. Performance Comparison with efficient models and two previous versions of Kimi-VL (Results of GPT-4o is for reference here, and shown in <iitalics</i): Comparison with 30B-70B open-source models: Text results, comparison with 30B-level non-thinking VLMs: 3. Usage 3.1. Inference with VLLM (recommended) As a long-decode model that will generates up to 32K tokens, we recommend using VLLM for inference, which has already supported Kimi-VL series. [!Note] It is important to explicitly install flash-attn to avoid

Summarised from the published model card. Read the full card on the HuggingFace links below.

Specifications

What it is

Makermoonshotai
TypeLanguage models
Parameters (lead)16.4B
Variants1
Runs withtransformers
Based onmoonshotai/Kimi-VL-A3B-Instruct
Released2025-06-21
Popularity33k downloads / month
Likes380
LicenceOpen weights

How it works

How language models work

Your prompttext / messagesTransformerattention over tokensNext-token loopgenerate + streamResponsetext · tool callsA language model reads your tokens and predicts the next one, again and again, streaming the reply back.

Variants

Sizes & precisions

Open weights ship in several sizes and precisions. One page, all the variants — pick the one that fits your GPU. VRAM figures are estimates from model size.

VariantParamsPrecisionVRAMFits 16 GBWeights
Kimi-VL-A3B-Thinking-250616.4BBF16~37.7 GBWeights ↗

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys kimi-vl-thinking-2506 for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (kimi-vl-thinking-2506 below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/chat/completions \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"kimi-vl-thinking-2506","messages":[{"role":"user","content":"Hello"}]}'

Details

Languages, data & research

Tags

transformers safetensors kimi_vl feature-extraction image-text-to-text conversational custom_code eval-results

Papers

Licence

Open weights

Open weights under mit — commercial use is permitted. Deploy it on AxForge EU hardware on request. Read the licence ↗

Sources

Weights & code

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