Claude 3 Opus vs 
GPT-6 Astra Pro
GPT-6 Astra Pro is cheaper than Claude 3 Opus at $10/M vs $15/M input tokens.
Pokémon Battle UI Recreation
Pokémon battle screen you can actually click. One HTML file.
Loading the build
Loading the build
Which answer wins?
Price and specs
Not enough votes to call it. On the specs, GPT-6 Astra Pro has the edge: newer, bigger context window.
| Spec | Claude 3 Opus | GPT-6 Astra Pro |
|---|---|---|
| Input price | $15/M tokens | $10/M tokens |
| Output price | $75/M tokens | $50/M tokens |
| Context window | 200K tokens | 1.1M tokens |
| Weights | — | Closed |
| Free API (OpenRouter) | No | No |
| Released | Mar 2024 | Sep 2026 |
| At 10M a month | $150 | $100 |
Input tokens at list price. No caching, no batch discount.
Where to run it
Claude 3 Opus
No hosts listed on OpenRouter.
GPT-6 Astra Pro2 hosts
Per million tokens. Prices and uptime via OpenRouter, checked 12 Oct 2026.
Common questions
What is the difference between Claude 3 Opus and GPT-6 Astra Pro?
Claude 3 Opus is developed by Anthropic while GPT-6 Astra Pro is developed by OpenAI. Claude 3 Opus has a 200K token context window vs GPT-6 Astra Pro's 1.1M. You can compare their actual outputs across 1 challenges on Rival to see how they differ in practice.
Which is better, Claude 3 Opus or GPT-6 Astra Pro?
It depends on your use case. Claude 3 Opus and GPT-6 Astra Pro each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 1 challenges so you can judge which fits your needs best.
How much does Claude 3 Opus cost compared to GPT-6 Astra Pro?
Claude 3 Opus costs $15/M input tokens and GPT-6 Astra Pro costs $10/M input tokens. GPT-6 Astra Pro is $5.00/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 Claude 3 Opus and GPT-6 Astra Pro on Rival?
This page shows a side-by-side comparison of Claude 3 Opus and GPT-6 Astra Pro 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.
More comparisons
Against the newest arrivals
- Claude 3 Opus vs Muse WonderLanded Oct 2026
- GPT-6 Astra Pro vs GPT-4 TurboLanded Oct 2026
- Claude 3 Opus vs Step 5 PreviewLanded Oct 2026
- GPT-6 Astra Pro vs Claude Haiku 5.5Landed Oct 2026
- Claude 3 Opus vs Ling 3.1 FlashLanded Oct 2026
- GPT-6 Astra Pro vs Mistral Large 4Landed Oct 2026
- Claude 3 Opus vs GPT-6.1 SolLanded Sep 2026
- GPT-6 Astra Pro vs Claude Sonnet 5.5Landed Sep 2026
Same lab, same size, long tail
- Claude 3 Opus vs Claude Haiku 5.5Version compare
- Claude 3 Opus vs Claude Sonnet 5.5Version compare
- GPT-6 Astra Pro vs GPT-6 AstraVersion compare
- GPT-6 Astra Pro vs GPT-6.1 SolVersion compare
- GPT-6 Astra Pro vs Mistral NemoNew provider
- Claude 3 Opus vs Mistral Small 4New provider
- GPT-6 Astra Pro vs Mistral Small CreativeNew provider
- GPT-6 Astra Pro vs Muse Glimmer 30BNew provider