# GPT-5.1 Instant and Thinking

> OpenAI's GPT-5.1 models balancing reasoning and conversational tone

GPT-5.1 Instant and Thinking are OpenAI language models trained with the same stack as their reasoning models, offering improved factuality and complex problem-solving over GPT-5. They introduce a more natural, conversational tone aimed at blending analytical capability with emotional intelligence. Designed for users who want both high reasoning performance and approachable interactions.

## At a glance

- **Company**: OpenAI
- **Homepage**: https://www.producthunt.com/r/SKO3A3WR7EYWCJ?utm_campaign=producthunt-api&utm_medium=api-v2&utm_source=Application%3A+claude+access+%28ID%3A+284460%29
- **Pricing**: freemium (from $20/mo)
- **API available**: Yes
- **Self-hostable**: No
- **Launched**: 2025-11
- **Last verified**: 2026-05-11

## Categories

- chat-assistants
- research
- productivity


## Capabilities

- long-context
- reasoning
- factuality
- conversational-ai
- complex-problem-solving


## Alternatives

- [ChatGPT](https://inforelay.ai/tools/chatgpt.md): Conversational AI assistant for text, code, and images
- [Claude](https://inforelay.ai/tools/claude.md): Anthropic's AI assistant for code, writing, and analysis
- [Perplexity](https://inforelay.ai/tools/perplexity.md): AI search engine that answers questions with cited sources



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Source: https://inforelay.ai/tools/gpt-5-1-instant-and-thinking/
Index: https://inforelay.ai/llms.txt