GPT-3.5 Turbo vs GPT-6 Luna

Price, context window & benchmark comparison

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GPT-3.5 Turbo

OpenAI
$0.50 / $1.50
Input / Output · per 1M tokens
VS
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GPT-6 Luna

OpenAI
$0.10 / $0.50
Input / Output · per 1M tokens
Compare different models
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Verdict: GPT-6 Luna is 3.8× cheaper than GPT-3.5 Turbo on a typical 3:1 input/output mix. GPT-6 Luna has the larger context window (1.1M vs 16K).
GPT-3.5 TurboGPT-6 Luna
Input price / 1M$0.50$0.10
Output price / 1M$1.50$0.50
Blended price (3:1)$0.75$0.20
Cached input / 1M—$0.01
Context window16K1.1M
Max output4K128K
Intelligence index—37.3
Coding index10.7—
Providers—7
Best provider uptime (30m)—100.0%
Vision inputNoYes
ReasoningNoYes
Tool callingYesYes
Released2023-05-282026-09-22
Retirement——

Cost calculator

FAQ

Which is cheaper, GPT-3.5 Turbo or GPT-6 Luna?

GPT-6 Luna is 3.8× cheaper than GPT-3.5 Turbo on a typical 3:1 input/output mix.

GPT-3.5 Turbo vs GPT-6 Luna: which has a bigger context window?

GPT-3.5 Turbo: 16,385 tokens. GPT-6 Luna: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-3.5 Turbo ≈ $1,750, GPT-6 Luna ≈ $450.00.

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