OpenAI GPT Luna Latest vs Granite 4.0 Micro: pricing comparison
Granite 4.0 Micro is the cheaper option at $0.02/$0.11 per 1M input/output tokens — OpenAI GPT Luna Latest ($0.20/$1.20) costs about 12x more per input token. Full spec-by-spec breakdown below.
| OpenAI GPT Luna Latest | Granite 4.0 Micro | |
|---|---|---|
| Input /1M tokens | $0.20 | $0.02 |
| Output /1M tokens | $1.20 | $0.11 |
| Cache read /1M | $0.02 | — |
| Context window | 1.1M | 131K |
| Provider | ~openai | Ibm-granite |
| Vision input | Yes | No |
| Released | Sep 2026 | Oct 2025 |
Real workload costs: OpenAI GPT Luna Latest vs Granite 4.0 Micro
Cost per single request at common token profiles — the cheapest model for each workload is highlighted.
| Workload | Tokens (in / out) | OpenAI GPT Luna Latest | Granite 4.0 Micro |
|---|---|---|---|
| Chatbot message | 500 / 300 | $0.0005 | <$0.0001 |
| RAG query with context | 4,000 / 500 | $0.0014 | $0.0001 |
| Document summarization | 20,000 / 1,000 | $0.0052 | $0.0005 |
| Agent coding session | 100,000 / 5,000 | $0.03 | $0.0023 |
Frequently asked questions
Which is cheaper: OpenAI GPT Luna Latest vs Granite 4.0 Micro?
Granite 4.0 Micro is the cheapest on input tokens at $0.02 per 1M, and Granite 4.0 Micro is cheapest on output at $0.11 per 1M. OpenAI GPT Luna Latest costs about 12x more per input token than Granite 4.0 Micro.
How much does OpenAI GPT Luna Latest cost per 1M tokens?
OpenAI GPT Luna Latest costs $0.20 per 1M input tokens and $1.20 per 1M output tokens on the ~openai API, with a 1.1M-token context window.
How much does Granite 4.0 Micro cost per 1M tokens?
Granite 4.0 Micro costs $0.02 per 1M input tokens and $0.11 per 1M output tokens on the Ibm-granite API, with a 131K-token context window.
What does a typical request cost on OpenAI GPT Luna Latest vs Granite 4.0 Micro?
For a typical request with 2,000 input and 500 output tokens: OpenAI GPT Luna Latest costs $0.0010, Granite 4.0 Micro costs <$0.0001. At 1,000 requests/day for a month that is $30.00 for OpenAI GPT Luna Latest vs $2.70 for Granite 4.0 Micro.
Estimate your own workload with the per-model calculators (OpenAI GPT Luna Latest, Granite 4.0 Micro), browse all current prices on the live model pricing dashboard, or run these models head-to-head on a real prompt (free account required). Prices may differ from provider list prices for batch or tiered usage.
Pricing data via the OpenRouter models API.