Claude Opus 4.6 vs GPT-6 Astra Pro (batch)
Side-by-side API pricing and Artificial Analysis performance for Claude Opus 4.6 (Anthropic) and GPT-6 Astra Pro (batch) (OpenAI). Green cells mark the better value in each row.
Prices updated Sep 18, 2026, 8:55 AM UTC · refreshed hourly
| Claude Opus 4.6 Anthropic | GPT-6 Astra Pro (batch) OpenAI | |
|---|---|---|
| Pricing | ||
| Input $/1M | $5.00 | $5.00 |
| Output $/1M | $25.00 | $25.00 |
| Blended $/1M (3:1) | $10.00 | $10.00 |
| RAG example (30K in / 2K out) | $0.2 | $0.2 |
| Quality & speed | ||
| Intelligence Index | 26.4 | — |
| Coding Index | — | — |
| Agentic Index | — | — |
| Output speed (tok/s) | 0 | — |
| Time to first token | 0s | — |
| Specs | ||
| Context window | 1M | 1.05M |
| Input modalities | text, image, file | file, image, text |
FAQ
Which is cheaper, Claude Opus 4.6 or GPT-6 Astra Pro (batch)?
Claude Opus 4.6 and GPT-6 Astra Pro (batch) currently have the same blended API price of $10.00 per 1M tokens.
Which is better for RAG workloads?
Both models cost about $0.2 for a 30K/2K RAG request at current rates. Context windows are 1M (Claude Opus 4.6) and 1.05M (GPT-6 Astra Pro (batch)).
Which scores higher on Artificial Analysis benchmarks?
Claude Opus 4.6 leads on the Artificial Analysis Intelligence Index (26.4 vs —). Check coding and agentic indices on this page for workload-specific tradeoffs.