How will we educate AI brokers to reliably discover and click on the precise on display screen aspect we imply after we give them a easy instruction? A crew of researchers from ML Foundations has launched Gelato-30B-A3B, a state-of-the-art grounding mannequin for graphical person interfaces that’s designed to plug into pc use brokers and convert pure language directions into dependable click on places. The mannequin is educated on the Click on 100k dataset and reaches 63.88% accuracy on ScreenSpot Professional and 69.15% on OS-World-G, with 74.65% on OS-World-G Refined. It surpasses GTA1-32B and bigger imaginative and prescient language fashions reminiscent of Qwen3-VL-235B-A22B-Instruct.
What Gelato 30B A3B Does in An Agent Stack?
Gelato-30B-A3B is a 31B parameter mannequin that advantageous tunes Qwen3-VL-30B-A3B Instruct with a mix of consultants structure. It takes a screenshot and a textual instruction as enter and produces a single click on coordinate as output.
The mannequin is positioned as a modular grounding part. A planner mannequin, for instance GPT 5 within the Gelato experiments, decides the following excessive stage motion and calls Gelato to resolve that step right into a concrete click on on the display screen. This separation between planning and grounding is vital when an agent should function throughout many working techniques and functions with totally different layouts.
Click on 100k, A Focused Dataset For GUI Grounding
Click 100k is the dataset that underlies Gelato. It pairs pc display screen photos with pure language directions, bounding containers for the goal aspect, picture dimensions, and normalized bounding containers. Every pattern is about up as a low stage command, for instance ‘faucet on the aspect between Background and Notifications choices’ with a exact area.
The dataset is constructed by filtering and unifying a number of public sources. The listing contains ShowUI, AutoGUI, PC Agent E, WaveUI, OS Atlas, UGround, PixMo Factors, SeeClick, UI VISION, a JEDI subset that focuses on spreadsheet and textual content cell manipulation, and movies from 85 skilled software tutorials annotated with Claude-4-Sonnet. Every supply contributes at most 50k samples, and all sources are mapped right into a shared schema with photos, directions, bounding containers, and normalized coordinates.
The analysis crew then runs an aggressive filtering pipeline. OmniParser discards clicks that don’t land on detected interface parts. Qwen2.5-7B-VL and SE-GUI-3B take away trivial examples, reminiscent of straightforward hyperlink clicks. GTA1-7B-2507 and UI-Venus-7B take away samples the place the instruction and click on area don’t match. A Qwen2.5-7B-VL baseline educated on a balanced 10k subset exhibits that this mixture provides a +9 pp accuracy achieve on ScreenSpot Professional in contrast with coaching on unfiltered information.
Skilled software protection is a selected focus. Click on 100k provides information from UI VISION and the JEDI subset, after which augments this with 80+ tutorial movies for actual desktop instruments. Claude 4 Sonnet generates bounding containers and low stage directions for these movies, adopted by guide inspection and corrections.
GRPO Coaching On High Of Qwen3 VL
On the coaching aspect, Gelato 30B A3B makes use of GRPO, a reinforcement studying algorithm that derives from work on DeepSeekMath and related techniques. The analysis crew comply with the DAPO setup. They take away the KL divergence time period from the target, set the clip larger threshold to 0.28, and skip rollouts with zero benefit. Rewards are sparse and are solely given when the anticipated click on falls contained in the goal bounding field, much like the GTA1 recipe.
They initialize from Qwen3 VL 30B A3B Instruct and run 100 RL steps on 32 A100 GPUs with 40 GB reminiscence. The very best checkpoint seems at step 84 (marked as inexperienced cross within the above picture), chosen by the imply efficiency throughout ScreenSpot Professional, OS World G, and OS World G Refined. At this level the mannequin reaches 63.88% on ScreenSpot-Professional and 67.19% and 73.40% on OS World G and OS World G Refined. A easy refusal prompting technique, which appends an instruction to reply with refusal when the aspect can’t be discovered, raises the OS-World-G scores to 69.15% and 74.65%.
Finish To Finish Agent Outcomes On OS World
To check Gelato past static grounding benchmarks, the analysis crew plugs it into the GTA1.5 agent framework and runs full pc use brokers on the OS World atmosphere. On this setup GPT 5 acts because the planner. Gelato 30B A3B offers grounding, the agent has at most 50 steps, and it waits 3 seconds between actions.
The analysis stories three runs per mannequin on a hard and fast OS World snapshot. Gelato-30B-A3B reaches 58.71% automated success charge with a small normal deviation, in contrast with 56.97% for GTA1 32B in the identical harness. As a result of the automated OS World analysis misses some legitimate options, in addition they run human analysis on 20 problematic duties. Beneath human scoring, Gelato reaches 61.85% success, whereas GTA1-32B reaches 59.47%.
Key Takeaways
- Gelato-30B-A3B is a Qwen3-VL-30B-A3B Instruct primarily based combination of consultants mannequin that performs state-of-the-art GUI grounding on ScreenSpot Professional and OS World G benchmarks, surpassing GTA1-32B and bigger VLMs reminiscent of Qwen3-VL-235B-A22B-Instruct.
- The mannequin is educated on Click on 100k, a curated grounding dataset that merges and filters a number of public GUI datasets {and professional} software traces, pairing actual screens with low stage pure language instructions and exact click on coordinates.
- Gelato-30B-A3B makes use of a GRPO reinforcement studying recipe on high of Qwen3-VL, with sparse rewards that solely set off when the anticipated click on lies inside the bottom reality bounding field, which considerably boosts grounding accuracy over supervised baselines.
- When built-in into an agent framework with GPT-5 appearing because the planner, Gelato-30B-A3B improves success charges on OS World pc use duties in contrast with GTA1-32B, demonstrating that higher grounding straight interprets into stronger finish to finish agent efficiency.
Gelato-30B-A3B is a crucial step for grounded pc use as a result of it exhibits {that a} Qwen3-VL primarily based MoE mannequin, educated on a rigorously filtered Click on 100k dataset, can beat each GTA1-32B and far bigger VLMs like Qwen3-VL-235B-A22B Instruct on ScreenSpot Professional and OS-World-G whereas staying accessible by way of Hugging Face. Total, Gelato-30B-A3B establishes a transparent new baseline for open pc grounding fashions.
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