O
OPENAI / gpt-6-astra

GPT‑6 Astra

Generalist frontier model oriented towards complex tasks, use of tools and highly demanding professional work.

01 / SUMMARY

The essential

ORIENTATIONGeneralist frontier

Primary use stated or inferred cautiously from official documentation.

CONTEXT1,050,000 tokens

Maximum input capacity when published by the source.

EXIT128,000 tokens

Documented maximum generation limit.

ACCESSOpenAI API · Responses, Chat Completions, and Batch

Verified availability channels.

02 / TECHNICAL SHEET

Limits and integration

API IDgpt-6-astra
ReleaseSeptember 3, 2026
Knowledge cutoffApril 30, 2026
EntranceText · Image
ExitText
Context window1,050,000 tokens
maximum output128,000 tokens
Reasoninglow, medium, high, xhigh, and max effort
Published toolsFeatures · Web search · File search · Code interpreter · Hosted shell · Computer use · MCP
Structured OutingsCompatible
Batch processingCompatible · 50% discount
Prompt cacheCompatible
Fine-tuningNot compatible
Verified platformsOpenAI API
BEST SUITED FOR

Complex reasoning, research, code, documents, and agents with tools.

WORTH MONITORING

Higher price per token; requires minimum permissions and review for sensitive actions.

03 / CAPABILITIES

What it can do

01

Advanced reasoning

Breaks down complex objectives and maintains lengthy work plans.

02

Use of tools

Operate in flows with navigation, code and professional environments.

03

Multimodal work

Interpret text and visual information within the same task.

04

Cybersecurity

High capacity accompanied by reinforced safeguards.

Input modalities
TextImage
04 / PRICES

Documented cost

ConceptWorthUnit/condition
Standard input10.00 USD / 1 M tokensStandard API rate
Cached input1.00 USD / 1 M tokensReading reused prefixes
Cache write or storage12.50 USD / 1 M tokensThe condition varies by provider
Standard output50.00 USD / 1 M tokensMay include reasoning tokens
Batch input5.00 USD / 1 M tokensAsynchronous processing
Batch output25.00 USD / 1 M tokensAsynchronous processing

Requests with more than 272,000 input tokens apply price multipliers; tools may add per-call charges.

i Prices change and may depend on level, region or context length. Check the source before making a decision.

05 / EVALUATIONS

How to read the results

OpenAI presents it as its highest-capability model for complex end-to-end work. The published results are from the provider and should be validated using your own tasks.

Inferama only highlights a “best result” when the metric, test set, configuration, and date allow for an equivalent comparison. The supplier's figures are presented as claims from its own source.

06 / VERSIONS

Chronology

GPT‑6 Astra

Launch and publication of the security summary.

07 / SOURCES

Traceability