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curl https://aihubmix.com/v1/chat/completions \-H "Authorization: Bearer sk-***" \-H "Content-Type: application/json" \-d '{"model": "gpt-5.5","messages": [{"role":"user","content":"Hi"}]}' # claude-opus-4-7 / gemini-3.1-pro-preview
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Recent Blog Posts
Codex Compaction Fails With "response protection is unavailable": It's the Web Search, Not Your Context
Since October 8, 2026, long Codex sessions have been dying the moment they try to compact. The error reads stream disconnected before completion: response protection is unavailable, retries don't help, and the conversation can't continue. Most reports involve gpt-6.1-sol, but gpt-6-astra and gpt-5.6-sol fail the same way. It shows up behind self-hosted proxies, and it also shows up in the official Codex app with a direct ChatGPT login. The short answer: the context isn't too big, and your netw
What Is Mistral Large 4? A Trillion-Parameter Specialist from Europe
Mistral Large 4 is Mistral AI's new flagship. It has about one trillion parameters, it is trained from scratch in Europe, and its open weights are due at the end of October 2026. It isn't the smartest model available. What makes it notable is that it leads in a few areas where closed flagships either refuse or fall behind: defensive security work, locating objects in images, and legal research agents. Mistral released it on October 6, 2026 as a public preview. Its nickname is "Le Chonk". This
Migrating from Claude Haiku 4.5 to 5.5: Five 400 Errors and the Quiet Changes
Changing claude-haiku-4-5 to claude-haiku-5-5 is the smallest part of this migration. Five request patterns that worked on Haiku 4.5 now return a 400 error, and several more changes fail no request but alter what you get back, what it costs, or how the model behaves inside an agent. Anthropic says existing Haiku 4.5 prompts should work well on Haiku 5.5 without changes. The request code around those prompts is a different story. This post lists each problem as you'll meet it: what you'll see,
