Text models
Neiron language models for chat, answer search, translation, and reasoning: handle everyday text tasks and pick the right model for each request in one place.
GPT-5.6 Luna
OpenAI
GPT-5.6 Luna is speed and efficiency. Search and reasoning are controlled independently; reasoning is off by default.
GPT-5.6 Terra
OpenAI
GPT-5.6 Terra is a versatile choice for most tasks. Search and reasoning are controlled independently; reasoning is off by default.
GPT-5.6 Sol
OpenAI
GPT-5.6 Sol is for the most demanding tasks. Search and reasoning are controlled independently; reasoning is off by default.
Claude Sonnet 5
Anthropic
Anthropic's flagship model for precise writing, long documents, and professional work.
Grok 4.5
xAI
The xAI model for fresh context, web search, and reasoned answers.
Gemini 3.1 Pro
Google model for multimodal context, search, and reasoning.
DeepSeek V4
DeepSeek
A model for structured analysis and tasks where answer logic matters.
GigaChat
Sber
GigaChat is Sber's language model. It is not available in Neiron; GPT-5.6 Terra covers similar tasks.
How to choose a text model
This page groups models of one type, but they solve different jobs. Start from the use case, not the model name: it is the shortest path to a usable result without unnecessary reruns.
- compare several language models on the same task
- prepare copy, structure, translation, analysis, or a working draft
- pick the balance of speed, reasoning depth, and answer style
Practical choice
- GPT-5.6 Luna, Terra, and Sol provide three speed and complexity tiers in one family; search and reasoning are enabled separately.
- Claude Sonnet 5 and Gemini 3.1 Pro add options for long documents, analysis, code, and multimodal context.
- Grok 4.5 and DeepSeek V4 are useful comparisons when you need fresh context, reasoning, or an alternative formulation.