Question 1

What is GPT-6 Astra?

Accepted Answer

GPT-6 Astra is a model from OpenAI, released on Sep 3, 2026. GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon...

Question 2

How much does GPT-6 Astra cost?

Accepted Answer

On the Respan gateway, input starts at $8.00 per 1M tokens on OpenAI, and output starts at $40.00 per 1M tokens on OpenAI, after gateway discounts. Averaged across 5 providers, it costs $9.60 per 1M input tokens and $48.00 per 1M output tokens.

Question 3

Which providers serve GPT-6 Astra on Respan?

Accepted Answer

5 providers serve GPT-6 Astra: OpenAI, Azure OpenAI, Inference.net, OpenRouter, and Perplexity. Azure OpenAI and Perplexity require your own provider API key (BYOK).

Question 4

What is GPT-6 Astra's context window?

Accepted Answer

GPT-6 Astra accepts up to 1.1M tokens of context on its largest provider route.

Question 5

How do I use GPT-6 Astra with the Respan gateway?

Accepted Answer

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "openai/gpt-6-astra". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

Question 6

How fast is GPT-6 Astra?

Accepted Answer

Over the last 30 days of requests through the Respan gateway, the fastest provider was OpenAI at 45 tokens per second, and the lowest response latency was 0.1 seconds on OpenRouter. Speed varies with request size and provider.

Question 7

Where does GPT-6 Astra rank on the Respan Index?

Accepted Answer

GPT-6 Astra scores 70.5 out of 100 on the Respan Index v1.1, ranking #2 of 138 models. By category: Coding 61.8, Agents 77.0, Reasoning 77.1, Knowledge & language 75.8, and Human preference 59.7. The Respan Index combines independent and lab-reported benchmark results into one score, using benchmark data collected by llmmetric.com.

Question 8

How does GPT-6 Astra score on benchmarks?

Accepted Answer

GPT-6 Astra has 37 published benchmark scores, including WeirdML 93.6%, BALROG 68.3%, and GPQA Diamond 96%. Each score links to where it was published; the data is collected by llmmetric.com.

Provider	Context	Input	Output
OpenAISave 20%`openai/gpt-6-astra`	1.1M	$8.00/M	$40.00/M
Azure OpenAIBYOK only`azure/gpt-6-astra`	1.1M	$10.00/M	$50.00/M
Inference.net`inference_net/gpt-6-astra`	922K	$10.00/M	$50.00/M
OpenRouter`openrouter/openai/gpt-6-astra`	1.1M	$10.00/M	$50.00/M
PerplexityBYOK only`perplexity/openai/gpt-6-astra`	1.1M	$10.00/M	$50.00/M

GPT-6 Astra

Providers

Certified where it counts.

Pricing

Cost by volume

Throughput and latency

Output speed

Time to first token

Response latency

Benchmarks

Respan Indexv1.1

Coding8

Apps

GPT-6 Astra FAQ

Works with your entire stack

Built for AI agents.
Break less.
Ship more.

Agents5

Reasoning8

Math6

Knowledge4

Multimodal1

Arena4

Other1