https://cuigh.com/tags/gpt-5.6/ Recent content in GPT-5.6 on AI Pulse Hugo en-US Mon, 13 Jul 2026 09:51:14 +0800 https://cuigh.com/posts/gpt-5-6-sol-production-migration-2026/ Mon, 13 Jul 2026 09:51:14 +0800 https://cuigh.com/posts/gpt-5-6-sol-production-migration-2026/ Ploy publicly migrated its production agent from Claude Opus 4.8 to GPT-5.6 Sol and got the visible win — 2.2x faster, 27% cheaper, 0.970 vs 0.936 visual. The three engineering costs nobody talks about are: tool-argument overreach (GPT-5.6 fills all 25 optional params by default, 52%–64% of file reads came back empty), prompt-cache design cliff (partial-prefix implicit caching was dropped, zero hit without explicit key+breakpoint), and reasoning-replay mismatch (server-side item references break under multi-worker append-only input). Migrating a production agent is a stack migration, not a model swap. https://cuigh.com/posts/openai-gpt-5-6-prompt-guidance-2026/ Mon, 13 Jul 2026 09:51:14 +0800 https://cuigh.com/posts/openai-gpt-5-6-prompt-guidance-2026/ On 7/12, OpenAI quietly posted an official GPT-5.6 Sol prompt guidance on its developer site. The pithy data point: on OpenAI's internal coding-agent eval, lean system prompts lift scores 10–15%, cut tokens 41–66%, cut cost 33–67%. This piece isn't about 'the model is smarter so write shorter.' It's about a prompt-design philosophy reversal in the GPT-5.6 era — from 'enumerate rules to keep the model on rails' to 'describe the destination only, leave the path choice to the model.' https://cuigh.com/posts/gpt-5-6-and-the-agent-task-completion-question-2026/ Fri, 10 Jul 2026 15:27:27 +0800 https://cuigh.com/posts/gpt-5-6-and-the-agent-task-completion-question-2026/ On July 9, OpenAI shipped GPT-5.6 and ChatGPT Work on the same day: the strongest model, and an agent that can run across web, mobile, and desktop for hours. Codex weekly active users crossed 5 million, with 1 million outside software development. The same day, Elon Musk publicly called Anthropic the AI leader. The first top comment on the 335-point HN thread for ChatGPT Work read: "This looks like OpenAI catching up to Anthropic's Cowork." The second half of 2026 will be decided not on model benchmarks, but on whether an agent can finish a full day's work. https://cuigh.com/posts/gpt-5-6-sol-and-the-id-check/ Sat, 27 Jun 2026 10:18:00 +0800 https://cuigh.com/posts/gpt-5-6-sol-and-the-id-check/ On June 26, 2026, OpenAI previewed GPT-5.6 Sol on the same day the Washington Post reported that the U.S. government will vet who gets to use it. Anthropic released Mythos to "trusted partners" the same week. Three launches, one shift: model release is no longer a tech event. It's an identity-distribution event.