Claude Opus 4.1 vs GPT-6 Luna Pro

Price, context window & benchmark comparison

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Claude Opus 4.1

Anthropic
$15.00 / $75.00
Input / Output · per 1M tokens
VS
O

GPT-6 Luna Pro

OpenAI
$0.10 / $0.50
Input / Output · per 1M tokens
Compare different models
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Verdict: GPT-6 Luna Pro is 150.0× cheaper than Claude Opus 4.1 on a typical 3:1 input/output mix. GPT-6 Luna Pro has the larger context window (1.1M vs 200K).
Claude Opus 4.1GPT-6 Luna Pro
Input price / 1M$15.00$0.10
Output price / 1M$75.00$0.50
Blended price (3:1)$30.00$0.20
Cached input / 1M$1.50$0.01
Context window200K1.1M
Max output32K128K
Intelligence index——
Coding index——
Providers—6
Best provider uptime (30m)—100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2025-08-052026-09-22
Retirement——

Cost calculator

FAQ

Which is cheaper, Claude Opus 4.1 or GPT-6 Luna Pro?

GPT-6 Luna Pro is 150.0× cheaper than Claude Opus 4.1 on a typical 3:1 input/output mix.

Claude Opus 4.1 vs GPT-6 Luna Pro: which has a bigger context window?

Claude Opus 4.1: 200,000 tokens. GPT-6 Luna Pro: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Opus 4.1 ≈ $67,500, GPT-6 Luna Pro ≈ $450.00.

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