What is the difference between GPT-6 Astra Pro and Inkling?

GPT-6 Astra Pro is developed by OpenAI while Inkling is developed by Thinking Machines. GPT-6 Astra Pro has a 1.1M token context window vs Inkling's 1.0M. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.

Which is better, GPT-6 Astra Pro or Inkling?

It depends on your use case. GPT-6 Astra Pro and Inkling each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 6 challenges so you can judge which fits your needs best.

How much does GPT-6 Astra Pro cost compared to Inkling?

GPT-6 Astra Pro costs $10/M input tokens and Inkling costs $1/M input tokens. Inkling is $9.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare GPT-6 Astra Pro and Inkling on Rival?

This page shows a side-by-side comparison of GPT-6 Astra Pro and Inkling across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Sep 2026

GPT-6 Astra ProvsInkling

Inkling is cheaper than GPT-6 Astra Pro at $1/M vs $10/M input tokens.

GPT-6 Astra Pro and Inkling compared across 6 shared prompts
Spec	GPT-6 Astra Pro	Inkling
Input price	$10/M tokens	$1/M tokens
Output price	$50/M tokens	$4.05/M tokens
Context window	1.1M tokens	1.0M tokens
Weights	Closed	Open
Free API (OpenRouter)	No	Yes (1 provider)
Released	Sep 2026	Jul 2026

Our Verdict

GPT-6 Astra Pro

InklingRunner-up

Not enough votes to call it. On the specs, GPT-6 Astra Pro has the edge: newer, major provider backing.

Inkling costs 12x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT-6 Astra Pro

Input

$10.00

Output

$50.00

Inkling

Input

$1.00

10× cheaper

Output

$4.05

12× cheaper

Inkling is cheaper on both: 10× input, 12× output.

Where to run it

5 hosts, cheapest first

GPT-6 Astra Pro2 hosts

HostInOutContextUptime

Azure AI Foundry$10.00 in$50.00 out1.1M98.9% up OpenAI$10.00 in$50.00 out1.1M99.6% up

Inkling3 hosts

HostInOutContextUptime

DeepInfrafp8$0.95 in$4.05 out524k97.4% up Basetenfp8$1.00 in$4.05 out1M79.6% up Together$1.00 in$4.05 out524k98.2% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Research

What we learned reading every model

FAQ

Common questions

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More comparisons

Cost per 1M tokens

5 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between GPT-6 Astra Pro and Inkling?

Which is better, GPT-6 Astra Pro or Inkling?

How much does GPT-6 Astra Pro cost compared to Inkling?

How can I compare GPT-6 Astra Pro and Inkling on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages

Cost per 1M tokens

5 hosts, cheapest first

What we learned reading every model

Common questions

What is the difference between GPT-6 Astra Pro and Inkling?

Which is better, GPT-6 Astra Pro or Inkling?

How much does GPT-6 Astra Pro cost compared to Inkling?

How can I compare GPT-6 Astra Pro and Inkling on Rival?

More comparisons

Against the newest arrivals

Same lab, same size, long tail

Model pages