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Model capability probe

ByteDance: UI-TARS 7B | tool calling

Whether ByteDance: UI-TARS 7B supports tool calling cannot be decided from the name alone. Check model ID bytedance/ui-tars-1.5-7b, provider ByteDance (Doubao), catalog params, modality, a lightweight runtime probe, and the error body together.

Model
bytedance/ui-tars-1.5-7b
ByteDance: UI-TARS 7B
Provider
ByteDance (Doubao)
1 models in catalog
Capability
tool calling
tool-calling
Catalog signal
runtime probe required
Context: 128,000
Capability probe summary
Model
bytedance/ui-tars-1.5-7b
Capability
tool-calling
Catalog signal
runtime probe required
Read-only check. Detection data burns after 5 minutes.
Read-only check. Detection data burns after 5 minutes.

How to judge this capability

Whether ByteDance: UI-TARS 7B supports tool calling cannot be decided from the name alone. Check model ID bytedance/ui-tars-1.5-7b, provider ByteDance (Doubao), catalog params, modality, a lightweight runtime probe, and the error body together.

  • Model: bytedance/ui-tars-1.5-7b
  • Provider: ByteDance (Doubao)
  • Capability: tool calling

How to prove it during checking

Read-only check. Detection data burns after 5 minutes.

  • Start with the catalog signal: runtime probe required, then verify with a real key in read-only mode.
  • The capability probe must bind model ID bytedance/ui-tars-1.5-7b; do not test another model from the same provider.
  • tool calling · supports frequency_penalty · supports logit_bias · supports max_tokens · supports presence_penalty

Next action

ByteDance: UI-TARS 7B tool calling should turn into an operator action: confirm sale tags, fill the capability matrix, change route, suggest a fallback model, or mark unsupported for now.

  • Read-only check. Detection data burns after 5 minutes.
  • Catalog signal: runtime probe required
  • Context: 128,000