GPT-6 Luna vs Sonar Deep Research

Price, context window & benchmark comparison

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GPT-6 Luna

OpenAI
$0.10 / $0.50
Input / Output · per 1M tokens
VS
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Sonar Deep Research

Perplexity
$2.00 / $8.00
Input / Output · per 1M tokens
Compare different models
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Verdict: GPT-6 Luna is 17.5× cheaper than Sonar Deep Research on a typical 3:1 input/output mix. GPT-6 Luna has the larger context window (1.1M vs 128K).
GPT-6 LunaSonar Deep Research
Input price / 1M$0.10$2.00
Output price / 1M$0.50$8.00
Blended price (3:1)$0.20$3.50
Cached input / 1M$0.01
Context window1.1M128K
Max output128K115K
Intelligence index37.3
Coding index
Providers7
Best provider uptime (30m)100.0%
Vision inputYesNo
ReasoningYesYes
Tool callingYesNo
Released2026-09-222025-03-07
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FAQ

Which is cheaper, GPT-6 Luna or Sonar Deep Research?

GPT-6 Luna is 17.5× cheaper than Sonar Deep Research on a typical 3:1 input/output mix.

GPT-6 Luna vs Sonar Deep Research: which has a bigger context window?

GPT-6 Luna: 1,050,000 tokens. Sonar Deep Research: 128,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-6 Luna ≈ $450.00, Sonar Deep Research ≈ $8,000.

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