head-to-head
Google: Gemini 3.5 Flash Lite (batch) vs OpenAI: GPT-5.6 Luna Pro
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| Google: Gemini 3.5 Flash Lite (batch) | OpenAI: GPT-5.6 Luna Pro | |
|---|---|---|
| Vendor | openai | |
| Quality Score | 100 | 100 |
| Input Price | $0.15/M | $0.20/M |
| Output Price | $1.25/M | $1.20/M |
| Context Window | 1,048,576 | 1,050,000 |
| Max Output | 65,536 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | ✓ | - |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Gemini 3.5 Flash Lite (batch) costs $0.46 and GPT-5.6 Luna Pro costs $0.50, so Gemini 3.5 Flash Lite (batch) is slightly 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.
Only Gemini 3.5 Flash Lite (batch) offers audio input and video input.
Pick Gemini 3.5 Flash Lite (batch) if you need lower cost, audio input or video input.
Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.
Related comparisons
Anthropic: Claude Opus 5 (batch) vs Google: Gemini 3.5 Flash Lite (batch)
Anthropic: Claude Opus 5 (batch) vs OpenAI: GPT-5.6 Luna Pro
ByteDance Seed: Seed-2.0-Code vs Google: Gemini 3.5 Flash Lite (batch)
ByteDance Seed: Seed-2.0-Code vs OpenAI: GPT-5.6 Luna Pro
ByteDance Seed: Seed 2.1 Turbo vs Google: Gemini 3.5 Flash Lite (batch)
ByteDance Seed: Seed 2.1 Turbo vs OpenAI: GPT-5.6 Luna Pro
DeepSeek: DeepSeek Flash Latest vs Google: Gemini 3.5 Flash Lite (batch)
DeepSeek: DeepSeek V4.1 Flash vs Google: Gemini 3.5 Flash Lite (batch)