OpenAI's fastest, most affordable GPT-5.6 tier for high-volume, latency-sensitive work.
Earlier Gemini 2.5 Pro preview release from May 2025.
No shared demos for these models yet.
No captured outputs for these models yet.
Both GPT 5.6 Luna and Gemini 2.5 Pro (05-06) are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.
GPT 5.6 Luna has a lower blended cost. GPT 5.6 Luna: $1.00 input / $6.00 output. Gemini 2.5 Pro (05-06): $1.25 input / $10.00 output.
GPT 5.6 Luna has a larger context window: GPT 5.6 Luna supports 1.1M tokens vs Gemini 2.5 Pro (05-06) at 1M tokens.
Yes, both GPT 5.6 Luna and Gemini 2.5 Pro (05-06) support vision/image input.
GPT 5.6 Luna and Gemini 2.5 Pro (05-06) have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.
If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both GPT 5.6 Luna and Gemini 2.5 Pro (05-06) for free on idapt.app to see which performs better for your specific needs.