Gemini 3.1 Pro Preview
Gemini 3.1 Pro PreviewAlternatives?
CheaperMiniMax M3.1 Flashthinking×2-83%$0.22No PDF input+1
BetterGPT-6 Lunamedium+14%-99%$0.017Function calling only with none · Chat Completions+3
OpenDeepSeek V4.1 Flash 1017max+88%-80%$0.26No PDF input+5CheaperGPT-6.1 Solxhigh+88%-70%$0.39Remove unsupported parameters+5
CheaperMiMo v2.6 FlashthinkingOpen+81%-95%$0.062No PDF input+4MiniMax M3.1 Flashthinking×2-83%$0.22No PDF input+1DeepSeek V4.1 Flash 1017maxOpen+88%-80%$0.26No PDF input+5GPT-6.1 Solxhigh+88%-70%$0.39Remove unsupported parameters+5MiMo v2.6 FlashthinkingOpen+81%-95%$0.062No PDF input+4
Grok 4.6medium+78%-12%$1.14Context: 1M → 500KGPT-6 Lunamedium+14%-99%$0.017Function calling only with none · Chat Completions+3MiMo v2.6 FlashthinkingOpen+81%-95%$0.062No PDF input+4GPT-5.6 Lunaxhigh+20%-93%$0.085GPT-6.1 Sollow+48%-90%$0.13Remove unsupported parameters+5GPT-6 Sollow+52%-90%$0.13DeepSeek V4.1 Flash 1017maxOpen+88%-80%$0.26No PDF input+5MiMo v2.6 FlashthinkingOpen+81%-95%$0.062No PDF input+4
GLM 5.3maxOpen+76%+54%$2.01No image input+5
Ling 3.1 FlashOpen+74%-23%$1.00No image input+1GLM 5.3 FlashmaxOpen+70%-78%$0.28Defaults to max · Self-hosted+4Gemini 4 Argonhigh×2.2+53%*$1.99Synchronous output stops at 65,536+2Gemini 3.8 Flashmedium+72%-28%*$0.93Sampling parameters are ignored+1Gemini 3.6 Flashhigh+50%+23%*$1.60Gemini 3.5 Flash Litehigh-29%-85%$0.19Gemini 3.1 Flash Litehigh-81%-95%$0.06Gemma 4 31BthinkingOpen-86%—$0.10 / $0.34Context: 1M → 256KGemini 2.5 Prothinking-94%-75%$0.33Gemma 4 26B A4BthinkingOpen-95%—$0.15 / $0.60Context: 1M → 256KAll Google models →Benchmarks
in Agents & Tool UseWatch out 1
Cannot use both thinking controls›
Setting thinking_level and legacy thinking_budget together returns HTTP 400; use only one. Source ↗
FAQ
How much does Gemini 3.1 Pro Preview cost?›
$2 per 1M input tokens and $12 per 1M output tokens; cached input $0.20 per 1M. A typical benchmark task costs about $1.30 at default effort.
Is Gemini 3.1 Pro Preview free to use?›
There is no free API; the cheapest paid price is $2 per 1M input tokens.
How good is Gemini 3.1 Pro Preview, and what is it best at?›
#18 of 334 in Chat & Knowledge, #45 of 132 in Coding, #48 of 133 in Agents & Tool Use, #9 of 195 in Writing & Language, #10 of 124 in Vision & Documents. Strongest at: Tool calling, Reasoning, Science, Long context, Knowledge, Instructions, Vision.
Is Gemini 3.1 Pro Preview better than Claude Haiku 5.5?›
On AutomationBench-AA, Gemini 3.1 Pro Preview scores 35.4 vs 36 — about the same. It is 949% more expensive per task.
How can I use Gemini 3.1 Pro Preview?›
Through the API of Google, Google AI Studio.
What is the context window of Gemini 3.1 Pro Preview?›
1M tokens, with up to 66K output tokens.
When was Gemini 3.1 Pro Preview released? Is there a newer version?›
Released 2026-02-19. It is the current version in its line.
Is Gemini 3.1 Pro Preview open source?›
No, Gemini 3.1 Pro Preview is a closed model available through an API. The closest open-weights option here is DeepSeek V4.1 Flash 1017.
Can Gemini 3.1 Pro Preview read images?›
It accepts text and images, PDF files, audio, video as input.
What is Gemini 3.1 Pro Preview?›
Gemini 3.1 Pro Preview is a closed language model from Google, released Feb 2026, the successor to Gemini 2.5 Pro Preview 06-05.
What are the best alternatives to Gemini 3.1 Pro Preview?›
MiniMax M3.1 Flash (cheaper), GPT-6 Luna (better), DeepSeek V4.1 Flash 1017 (open weights).