OpenAI: GPT-6 Astra Pro (batch)

openai/gpt-6-astra-pro:batch · OpenAINot yet established

Declared family: GPT
Evidence confidence: Unknown
Declared tokenizer tag: GPT
Entered catalogue: 4 September 2026
Last tested: Not yet measured
Measurement: Awaiting measurement

This entry is a serving variant of OpenAI: GPT-6 Astra Pro. A variant shares its base model's tokenizer by construction, so the measurement lives on the base record and this page inherits it.

Evidence stack

Signals of different kinds, weighed together

Signal	Result	Reference
Tokenizer signature	Not measured	–
API surface	Identical contract to 1 other entry	api_1db69556
Context and output	1,050,000 context · 128,000 max output	declared
Reasoning contract	Mandatory · efforts max, xhigh, high, medium, low · default medium	declared
Serving providers observed	None recorded yet	–

Declared record

What the catalogue claims about this model

GPT-6 Astra Pro is the same underlying model as [GPT-6 Astra](https://openrouter.ai/openai/gpt-6-astra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

Modalities: text+image+file->text
Declared tokenizer: GPT
Prompt price: $5.00 / M tokens
Completion price: $25.0 / M tokens

Supported parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

defaults: {}

Catalogue entry

History

Every observation, kept as taken

4 September 2026Enters the OpenRouter catalogue declared as GPT.

Cite this page as the evidence record for OpenAI: GPT-6 Astra Pro (batch): the URL is stable, measurements are dated, and revisions append to the history above. Method: tokenizer fingerprinting, v1, 50 strings.