gemini-3.8-flash vs gpt-5.6-luna
Both can be used on onomeo. Everything below comes from calls made through this site.
- gemini-3.8-flash
- No edge in the figures
- gpt-5.6-luna
- 1 advantage
How to choose
gemini-3.8-flashNo edge in the figures
gpt-5.6-lunaReads images
gemini-3.8-flash
By Google
gpt-5.6-luna
By OpenAI
Where they differ
gemini-3.8-flashgpt-5.6-luna
On this site
$5.63Reference price per million output tokens$1.80
$1.13Reference price per million input tokens$0.30
The model itself
1M tokensContext length1.1M tokens
64K tokensLongest reply128K tokens
NoReads imagesYes
Not publishedKnowledge cutoffFeb 2026
2 Sep 2026Released9 Jul 2026
$0.11Reference price per million cache-read tokens$0.03
Where they match
- Place in this week's rankingUnranked
- Calls toolsYes
- Thinks before answeringYes
- Conversations used for trainingUsed to train and improve the provider’s models
- Open weightsNo
Availability over 3 days counts every call made through the site; this week's availability counts every call over the last 7 days, scheduled tests included, and response time comes from the site's own scheduled tests. Models marked as free are counted in calls; paid models are charged by usage, in US dollars.
Compare next
gemini-3.8-flash against other models
- vs hy4-preview$3.75Reference price per million output tokens
- vs gpt-6.1-terra$7.50Reference price per million output tokens
- vs mistral-large-4$3.13Reference price per million output tokens
- vs glm-5.3$8.25Reference price per million output tokens
- vs deepseek-v4.1-flash-1017$2.25Reference price per million output tokens
- vs qwen3.8-max$9.00Reference price per million output tokens
gpt-5.6-luna against other models
- vs deepseek-flash$1.76Reference price per million output tokens
- vs deepseek-v4.1-flash-1017$2.25Reference price per million output tokens
- vs mimo-v2.6-pro$1.30Reference price per million output tokens
- vs glm-5.3-flash$0.75Reference price per million output tokens
- vs claude-haiku-5.5$0.75Reference price per million output tokens
- vs mistral-large-4$3.13Reference price per million output tokens
Figures come from real calls made through this site. Models are served by third-party providers and may slow down or be withdrawn; this page follows those changes.