head-to-head

Particle AI: Particle-1 vs OpenAI: GPT-6 Luna Pro

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-02.

Particle AI: Particle-1 OpenAI: GPT-6 Luna Pro
Vendorparticle-aiopenai
Quality Score100100
Input Price$0.05/M$0.10/M
Output Price$0.50/M$0.50/M
Context Window1,048,5761,050,000
Max Output131,072128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--

The verdict

For a sample job of 1 million input tokens and 250,000 output tokens, Particle-1 costs $0.17 and GPT-6 Luna Pro costs $0.23, so Particle-1 is about 1.3 times cheaper for the same work.

Both take in a similar amount of text: 1,048,576 and 1,050,000 tokens, about 1,573 and 1,575 pages.

Particle-1 was released in October 2026 and GPT-6 Luna Pro in September 2026.

Pick Particle-1 if you need lower cost.

Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.

Related comparisons

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