OpenAI just turned on a faster lane for GPT-6.1 Sol.
AspireAI community · developers.openai.com
OpenAI just turned on a faster lane for GPT-6.1 Sol.
Rolling out today (Oct 15, 2026) in the API, Codex, and ChatGPT Work, "Ultrafast" runs the same model at up to 8x the standard token generation speed — roughly 300 tokens per second in OpenAI's testing. Quality is described as near-Astra, OpenAI's flagship tier.
It costs 6x as much per token: $12 per million input and $60 per million output, versus $2 and $10 for Standard. That's about 1.2x the price of GPT-6 Astra, but with much lower latency.
API access is open to all developers via service_tier: "ultrafast". Inside ChatGPT Work and Codex, it's gated to Pro 500 ($500/month), eligible usage-based Enterprise, and credit-based Edu plans. Plus and Pro 200 subscribers can't reach it.
OpenAI recommends WebSocket connections for agentic workloads — single HTTP calls lose much of the speedup to overhead.
Read the story and explore more from the AspireAI community.
Two critical PHP remote code execution flaws — one found by GPT-5.6 Sol — were patched on October 21, 2026, and OpenAI published a disclosure framework alongside the fix. Fixed versions: PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35. Both allow unauthenticated remote code execution, and PHP's advisory says risk is highest for mod_php, where a demonstrated exploit triggers before any application code runs. The CVEs are distinct failure modes. CVE-2026-109618 (OOM corruption): out-of-memory handling can interrupt PHP while internal request data is only partially initialized, and request cleanup may then treat the invalid data as valid. CVE-2026-109619 (stale global state): request-owned internal state can survive after its backing memory is freed, and a later request served by the same worker may use that stale state. OpenAI states GPT-5.6 Sol identified the first flaw through its Patch the Planet initiative, and that Wiz independently discovered and reported both vulnerabilities. PHP's maintainers led the fixes and release, with Wiz, Cloudflare and OpenAI contributing research and coordination. Wiz's write-up adds that it used GPT-5.6 Sol and Gemini 4 Argon throughout, with Gemini 4 Argon contributing to finding the vulnerability and validating the patch. OpenAI describes the gap between discovery and public exploitation as a "Defender's Window," proposes a five-stage response framework, and committed $1 billion in subsidised Daybreak model access for organizations with limited security resources. Honest caveats: these are OpenAI's and Wiz's own characterizations, and OpenAI also notes the same capabilities help attackers build offensive tooling faster. PHP 8.1 and older no longer receive updates from the PHP project.