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OpenAI Launches GPT-6.1 Sol Ultrafast, Delivering Up to 8× Faster Processing and Real-Time Codex Steering

October 9, 2026 at 03:52 EDT

Foundation Models
AI Agents
Software Dev & Coding

OpenAI has rolled out GPT-6.1 Sol Ultrafast across its API, Codex, and ChatGPT Work platform, offering near-Astra-level reasoning at up to eight times the speed of Sol Standard to enable interactive agents and time-critical applications. The new tier became available October 9, 2026, with pricing set at $12 per million input tokens and $60 per million output tokens—1.2× the cost of Astra and six times the standard Sol rate.

OCTOBER 9, 2026 · OPENAI

Ultrafast: 8× Faster Reasoning and Instant Steering

GPT-6.1 Sol Ultrafast launches with near-Astra intelligence at dramatically faster speeds for interactive agents, real-time debugging, and latency-sensitive applications.

8×

Faster than Standard

6×

Cost Premium vs Standard

Pricing Comparison

Input

$12/M

Output

$60/M

Note: Ultrafast is 6× Standard rates; 1.2× Astra rates. Sol Standard is $2/$10 per million tokens.

Key Limitations

💰 Premium pricing requires strong latency savings to justify cost
🔒 Access restricted to Pro 500+, Enterprise, and Edu plans
⚠️ Steering does not undo completed actions or cancel tools in progress

Best For

Interactive agents that must read results before proceeding • Real-time debugging where latency defines the experience • Codex loops where output speed drives developer productivity • Live customer-facing tools requiring sub-second response latency

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