GPT-4.1 and Model Lineup Refresh

GTCX Network now supports the full GPT‑4.1 family: GPT‑4.1, GPT‑4.1 Mini, and GPT‑4.1 Nano. These models bring stronger reasoning, faster responses, and lower costs across a wide range of tasks.

To keep GTCX Network agents running on the best available models, we are also refreshing the full model lineup. The GPT‑4.1 family is available now, with additional models from OpenAI and Google coming soon:

Now live:

• GPT‑4.1 replaces GPT‑4o

• GPT‑4.1 Mini replaces GPT‑4o Mini

• GPT‑4.1 Nano is newly added for high-speed, lightweight tasks

Coming soon:

• OpenAI o3 will replace o1

• OpenAI o4-mini will replace o3-mini

• Gemini 2.5 Pro will replace Gemini 1.5 Pro

Agents powered by GPT‑4.1 are more accurate at following detailed prompts, produce cleaner outputs, and handle longer interactions more reliably. While GTCX Network already supports long documents through Knowledge Index and RAG, the expanded 1 million-token context window makes GPT‑4.1 a strong fit for cases where agents need to reference large, complex source documents directly.

Key improvements:

• Agents now understand structured input requirements, edge-case logic, and negative instructions like “don’t include X.”

• GPT-4.1 is 26% cheaper per request on average than GPT-4o, while GPT-4.1 Nano is the fastest, most efficient option for low-latency tasks like classification. Especially relevant for users who use GTCX Network with their own API key.

• All 4.1 models can now handle up to 1 million tokens—ideal for agents reviewing large filings, contracts, or counterparty research packs without missing context buried deep inside.