Model capability probe

OpenAI: GPT-5 | tool calling

Whether OpenAI: GPT-5 supports tool calling cannot be decided from the name alone. Check model ID openai/gpt-5, provider OpenAI, catalog params, modality, a lightweight runtime probe, and the error body together.

Model

openai/gpt-5

OpenAI: GPT-5

Provider

OpenAI

62 models in catalog

Capability

tool calling

tool-calling

Catalog signal

catalog shows support

Context: 400,000

Capability probe summary

Model

openai/gpt-5

Capability

tool-calling

Catalog signal

catalog shows support

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

How to judge this capability

Whether OpenAI: GPT-5 supports tool calling cannot be decided from the name alone. Check model ID openai/gpt-5, provider OpenAI, catalog params, modality, a lightweight runtime probe, and the error body together.

Model: openai/gpt-5
Provider: OpenAI
Capability: tool calling

How to prove it during checking

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

Start with the catalog signal: catalog shows support, then verify with a real key in read-only mode.
The capability probe must bind model ID openai/gpt-5; do not test another model from the same provider.
tool calling · supports include_reasoning · supports max_completion_tokens · supports max_tokens · supports reasoning

Next action

OpenAI: GPT-5 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: catalog shows support
Context: 400,000

Open key checker

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