GPT-6 AstravsClaude Opus 5.5

GPT-6 Astra leads the overall Podium Score by 2.2 points (86.2 vs 84.0).Category wins: GPT-6 Astra 2 — 2 Claude Opus 5.5.Claude Opus 5.5 is the cheaper pick ($25/M vs $50/M per 1M output tokens). GPT-6 Astra is faster (82 t/s vs 68 t/s).

Open in Compare Tool →View GPT-6 AstraView Claude Opus 5.5
GPT-6 AstraDrag slider or hover to compareClaude Opus 5.5
Claude Opus 5.5
84.0
Coding: 85.0 · Speed: 68 t/s
Output Price: $25/M
GPT-6 Astra
86.2
Coding: 67.2 · Speed: 82 t/s
Output Price: $50/M
Quick VerdictAggregated 2026 Benchmark Analysis

GPT-6 Astra is rated higher overall with a Podium Score of 86.2 (vs 84.0 for Claude Opus 5.5). Both models show closely matched capabilities across domain benchmarks.

Coding & Engineering
Claude Opus 5.5 (85.0)
Inference Speed
GPT-6 Astra (82 t/s)
Cost Efficiency
Claude Opus 5.5 ($25/M)
API Price / 1M (in · out)
GPT-6 Astra $10/M · $50/M — Claude Opus 5.5 $5/M · $25/M

Choose GPT-6 Astra for vision and multimodal apps, and Claude Opus 5.5 for coding and software engineering.

MetricGPT-6 AstraClaude Opus 5.5
Podium Score86.2 ▲84.0
Arena Elo1498—
Intelligence Index61.0—
Coding67.285.0 ▲
Math97.6—
Reasoning96.0 ▲86.0
Agentic72.6—
Knowledge31.545.0 ▲
Multimodal98.2 ▲85.0
Long-context100.0—
Output speed82 t/s ▲68 t/s
Output price$50/M$25/M ▲
Context window1100K ▲1000K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: GPT-6 Astra vs Claude Mythos · GPT-6 Astra vs Claude 5.5 Sonnet · GPT-6 Astra vs Kimi K3.1 Pro · GPT-6 Astra vs Eleven Multilingual v3
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