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Cursor user enables GPT-6 Astra with custom relay for agent tools

By PulseAugur Editorial · [1 sources] ·

A user has developed a workaround to enable the GPT-6 Astra model to function within Cursor's AI agent, which typically struggles with custom models and specific API protocols. The solution involves a local relay that translates between Cursor's expected Chat Completions API and OpenAI's Responses API, which is necessary for Astra's tool-use and reasoning capabilities. This relay also handles model aliasing and ensures the user's OpenAI API key remains private. AI

IMPACT Enables advanced AI agent functionality by overcoming integration hurdles between custom models and existing platforms.

RANK_REASON User-developed workaround for integrating a specific AI model with a software product.

Read on r/cursor →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Cursor user enables GPT-6 Astra with custom relay for agent tools

How we ranked this

Signal score
10 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
User-developed workaround for integrating a specific AI model with a software product.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, infra
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/cursor TIER_2 English(EN) · /u/salmoukas ·

    Got GPT-6 Astra working in Cursor's Agent (tools + reasoning) via BYOK – what blocks it and how I worked around it

    <!-- SC_OFF --><div class="md"><p><strong>TL;DR:</strong> With your own OpenAI key, <code>gpt-6-astra</code> doesn't work in Cursor even though the same key works via curl. I put a logging relay between Cursor and OpenAI and found two mismatches: Cursor's BYOK path speaks Chat Co…

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