Model comparison
Same task, different trade-offs.
We are not looking for an absolute winner. The comparison shows which model better suits your work, budget and required speed.
Models being compared
GPT-5.6 Terra
Older profile · current status unverified
Data from July 31, 2026
Release date unverified
A practical compromise for solving complex problems and autonomous programming. Slightly less capable than the Sol variant, but more economical.
Gemini 3.8 Flash
Data from September 27, 2026
Published September 2, 2026
Processes text, images, audio and video; the output is text.
Price, speed and usage
Upper mid-range · from July 30, 2026, standard pricing is $2 per million input tokens and $12 per million output tokens
$0.75 input / $3.75 output per million tokens through December 31, 2026. From January 1, 2027: $1.50 / $7.50.
Medium depending on processing thoroughness
We have not independently measured speed on a comparable basis.
Online service from OpenAI and the Codex tool
Gemini API and Google AI Studio
Varies by product and mode
1,048,576 input tokens; output capped at 65,536 tokens.
Text and, depending on the service used, image inputs
Text, images, video, audio and PDF → text
GPT-5.6 Terra
Use when…
- Everyday programming with AI assistance
- Analyses where costs need to be controlled
- Second stage after a low-cost classification model
Choose another model when…
- The hardest tasks with no opportunity for correction
- Simple processing at scale where Flash-Lite is sufficient
Gemini 3.8 Flash
Use when…
- Analysis of documents, audio and video
- Programming and multi-step business tasks
Choose another model when…
- A different model is needed to generate images or audio directly.
Original sources