GPT-5.1 Chat Latest

Positioned as an advanced conversational system, GPT-5.1 Chat Latest is built around responsiveness and an engaging, natural dialogue style. The supplier describes it as a low-latency, highly interactive model designed to feel warm and adaptive during extended back-and-forth exchanges, making it well suited to chat assistants, customer-facing interfaces, and other interactive applications where conversational flow matters more than raw task throughput.

Through the AI/ML API aggregator, the model is reachable under the openai vendor namespace, where it is documented alongside a Playground environment for hands-on testing and standard chat-completion request patterns. The framing emphasizes enhanced intelligence paired with warmth and responsiveness, suggesting a tuning profile that favors conversational quality and rapid interaction over specialized reasoning or batch processing, and giving teams a straightforward integration path for dialogue-first use cases.

Abacusgpt-5.1-chat-latestgpt

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Quick Info

Provider: Abacus
Model key: gpt-5.1-chat-latest
Release date: Nov 13, 2025
Last updated: Nov 13, 2025
Knowledge cutoff: 2024-09-30
Input modalities
Output modalities
Capabilities

Cost

Input token cost: $1.25
Output token cost: $10.00

Limits

Output tokens: 128,000 tokens
Context window: 400,000 tokens

Latest news about GPT-5.1 Chat Latest

Abacus

Coverage

AIBase reports that OpenAI launched GPT-5.1 as a faster, more accurate, and more human-like personal AI assistant, with the article explicitly naming the model ID gpt-5.1-chat-latest for the GPT-5.1 Instant variant. The Instant model is described as warmer and more conversational than its predecessor, designed to give The same article explains that the GPT-5.1 Thinking model (gpt-5.1) introduces adaptive reasoning: for simple queries it is about twice as fast as the previous version, while for more difficult topics it spends more time thinking and provides roughly twice the level of detail at a slower speed, with particular improvem