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GPT-6 Astra

Use GPT-6 Astra for complex reasoning, coding, and long-document analysis. Try it in the AIReiter Playground or connect through the API.

Input tokensInputOutputCache readCache creation
≤ 272,000$3.00 per 1M tokens$15.00 per 1M tokens$0.30 per 1M tokens$3.75 per 1M tokens
> 272,000$6.00 per 1M tokens$22.50 per 1M tokens$0.60 per 1M tokens$7.50 per 1M tokens

Rates are per million tokens. The tier applies to the entire request based on total input tokens, including cached reads and writes.

Run with API

INPUT

OUTPUT

Example
Generated in
42.7 seconds
Input tokens
134
Output tokens
2354
Tokens per second
55.13 tokens / second
Time to first token
-

Model details

Use the same model key in Playground, API requests, and internal workflows.

Model ID
gpt-6-astra
Provider
OpenAI
Protocol
OpenAI Chat Completions
Context window
1,050,000 tokens
Max output
128,000 tokens

What GPT-6 Astra is built for

OpenAI's frontier model for complex reasoning, coding, and long-context work.

Complex reasoning

Work through decisions with interacting constraints, incomplete evidence, and explicit acceptance criteria.

Software engineering

Plan, implement, debug, and review multi-file changes while keeping architecture, tests, and operational risk in view.

Long-document analysis

Analyze reports, requirements, specifications, and research collections within a 1,050,000-token context window.

Image-aware workflows

Combine text instructions with reference images when the task requires visual inspection.

When to choose GPT-6 Astra

Use Astra when task complexity matters more than minimizing token cost.
01

Architecture and migration reviews

Evaluate system boundaries, data migration plans, rollback paths, and failure modes before implementation.

02

Difficult coding tasks

Use it for cross-module debugging, substantial refactors, and code generation with multiple constraints.

03

Research synthesis

Distinguish evidence, assumptions, and unresolved questions across supplied source material.

04

Technical documents

Draft proposals, specifications, and decision records for a defined audience and format.

Choose a reasoning effort

Start at medium and increase effort when the task benefits from deeper analysis.

Low

Direct transformations, short summaries, and routine questions where latency matters.

Medium

The default for everyday coding, analysis, and document work.

High and xhigh

Difficult debugging, architecture tradeoffs, and competing constraints.

Max

The hardest tasks. Measure the additional reasoning tokens, latency, and quality on your workload.

Standard and long-context pricing

The live tables on this page and the Pricing page are the source of truth for current rates.
01

Up to 272,000 input tokens

Per 1M tokens: input $3, output $15, cached input $0.30, and cache writes $3.75.

02

Above 272,000 input tokens

Per 1M tokens: input $6, output $22.50, cached input $0.60, and cache writes $7.50. The rate applies to the entire request.

03

How the threshold is counted

Uncached input, cached reads, and cache writes count toward total input. Output does not select the band.

04

Example

100,000 input plus 10,000 output tokens costs $0.45. At 300,000 input plus 10,000 output tokens, the token charge is $2.025.

Call the GPT-6 Astra API

Use the public model ID gpt-6-astra with an AIReiter API key.

01

Create an API key

Create a server-side key in your account and keep it out of browser code and public repositories.

02

Send the request

POST to https://aireiter.com/api/v1/chat/completions with model gpt-6-astra and a messages array.

03

Verify the result

Check status, finish reason, response content, and usage. Retry transient failures with bounded backoff.

GPT-6 Astra vs GPT-5.6 Sol vs Terra

Choose by task complexity. GPT-5.6 Sol fits demanding professional work, while GPT-5.6 Terra balances cost and capability.

ModelBest for
GPT-6 AstraThe hardest reasoning, coding, and long-context tasks
GPT-5.6 SolDemanding coding, agents, and professional work
GPT-5.6 TerraEveryday work with a cost and capability balance

Explore and integrate

Compare models, check live pricing, or read the API documentation.

GPT-6 Astra FAQ

/ 01

When should I choose GPT-6 Astra?

Choose Astra for the hardest reasoning, coding, architecture, and long-context tasks.

/ 02

What are the limits?

The page shows a 1,050,000-token context and up to 128,000 output tokens. Account limits may also apply.

/ 03

Why are there two pricing bands?

Above 272,000 total input tokens, the entire request uses long-context rates. Cache reads and writes count toward the threshold.

/ 04

Which model ID should I use?

Use gpt-6-astra in API requests.

/ 05

Can I send images?

Yes. Image inputs are billed as input tokens according to reported usage.