ByteDance

UI-TARS 7B

bytedance/ui-tars-1.5-7b
Model weightsReleased Jul 22, 2025Open Weights
Visionopen weights

UI-TARS-1.5 is a multimodal vision-language agent optimized for GUI-based environments, including desktop interfaces, web browsers, mobile systems, and games. Built by ByteDance, it builds upon the UI-TARS framework with reinforcement...

Cost / 1M tokens

Very low usage

$0.10

input

$0.10

cached input

$0.20

output

Context Window

128K

Up to 2K max output

Modalities

image, text → text

Other tokenizer

Quickstart & API

bytedance/ui-tars-1.5-7b
Open the model picker in ChatOSS Desktop (Code, Kanban, or Chat) and select or paste this model ID.

Best for & Strengths

Key Strengths

Open weightsMultimodal vision

Recommended Workloads in ChatOSS

  • Screenshot-to-code workflows
  • Open-source AI workflows
Available in ChatOSS Code, Kanban Orchestrate, and Chat modes via Plus, Max, or BYOK.

Active Provider Endpoints (1)

Upstream inference providers serving UI-TARS 7B , with per-provider pricing, context limits, quantization, and 24-hour uptime.

ProviderInput / 1MOutput / 1MCache Read / 1MContextMax OutputQuantizationUptime (24h)
Parasailcache
parasail/bf16
$0.10$0.20$0.10128K2Kbf16100.0%

Supported API Parameters

Parameters accepted by this model when called through ChatOSS or OpenRouter.

frequency_penaltylogit_biaslogprobsmax_tokenspresence_penaltyrepetition_penaltyseedstopstructured_outputstemperaturetop_ktop_logprobstop_p

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