SmophyAI

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Real data comparison

Anthropic: Claude Opus 5.5 (batch) vs OpenAI: GPT-6 Astra (batch)

On quality, Anthropic: Claude Opus 5.5 (batch) leads (59.1 vs 56.9). On price, Anthropic: Claude Opus 5.5 (batch) is cheaper ($8.00 vs $20.00 per 1M). In real production usage, Anthropic: Claude Opus 5.5 (batch) is used more (rank #16 vs #57 of 404).

  • Anthropic: Claude Opus 5.5 (batch)
  • OpenAI: GPT-6 Astra (batch)
Quality (Intelligence Index)59.1 / 56.9
Price ($/1M blended)$8.00 / $20.00
Average usage share2.99% / 0.58%
Best provider uptime100.0% / 100.0%
Context window1,000,000 / 1,050,000
Quality per dollar7.4 pts/$ / 2.8 pts/$

Usage share over time

6.04%4.53%3.02%1.51%0.00%Share of usageSep 5Oct 6Nov 6
  • Anthropic: Claude Opus 5.5 (batch)
  • OpenAI: GPT-6 Astra (batch)

Frequently asked questions

Anthropic: Claude Opus 5.5 (batch) vs OpenAI: GPT-6 Astra (batch): which is better quality?

Anthropic: Claude Opus 5.5 (batch) scores higher on Artificial Analysis's Intelligence Index (59.1 vs 56.9).

Anthropic: Claude Opus 5.5 (batch) vs OpenAI: GPT-6 Astra (batch): which is cheaper?

Anthropic: Claude Opus 5.5 (batch) is cheaper at $8.00/1M vs $20.00/1M.

Anthropic: Claude Opus 5.5 (batch) vs OpenAI: GPT-6 Astra (batch): which is used more?

Anthropic: Claude Opus 5.5 (batch) has higher real OpenRouter usage share (rank #16 vs #57 of 404).

Source: OpenRouter (openrouter.ai/rankings), as of November 7, 2026.

Benchmark scores: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings).

Methodology: www.smophy.ai/benchmark/methodology

Token counts originate from each provider's own tokenizer and are not directly comparable across providers.