GPT-6 Luna Pro vs Granite 4.0 Micro

Price, context window & benchmark comparison

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GPT-6 Luna Pro

OpenAI
$0.10 / $0.50
Input / Output · per 1M tokens
VS
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Granite 4.0 Micro

IBM Granite
$0.017 / $0.11
Input / Output · per 1M tokens
Compare different models
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Verdict: Granite 4.0 Micro is 4.9× cheaper than GPT-6 Luna Pro on a typical 3:1 input/output mix. GPT-6 Luna Pro has the larger context window (1.1M vs 131K).
GPT-6 Luna ProGranite 4.0 Micro
Input price / 1M$0.10$0.017
Output price / 1M$0.50$0.11
Blended price (3:1)$0.20$0.0408
Cached input / 1M$0.01
Context window1.1M131K
Max output128K118K
Intelligence index
Coding index
Providers6
Best provider uptime (30m)100.0%
Vision inputYesNo
ReasoningYesNo
Tool callingYesNo
Released2026-09-222025-10-20
Retirement

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FAQ

Which is cheaper, GPT-6 Luna Pro or Granite 4.0 Micro?

Granite 4.0 Micro is 4.9× cheaper than GPT-6 Luna Pro on a typical 3:1 input/output mix.

GPT-6 Luna Pro vs Granite 4.0 Micro: which has a bigger context window?

GPT-6 Luna Pro: 1,050,000 tokens. Granite 4.0 Micro: 131,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-6 Luna Pro ≈ $450.00, Granite 4.0 Micro ≈ $90.00.

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