Teams are using the open-source Codex harness to bring agents into the tools they already use, from internal apps to operations dashboards.
Their applications control the interface, context, tools, and approvals while the harness handles the agent loop.
https://t.co/shi2vwqxh4
We're making Git hosting more reliable, performant, and scalable.
This post traces 20 years of Git infrastructure and explains how that history led us to design and operate our Git storage, Origin, as if it were a database.
https://t.co/UW7jHuItSX
Here is how to enable a 1M-token context window in Codex for GPT-5.6 Sol.
Even though we have tuned the context limit in Codex to be set optimally when it comes to performance and cost, this is a common ask, so here it is documented.
A larger context window lets Codex retain more code, tool output, and conversation history before summarizing older material. You need a model that supports it. And GPT-5.6 Sol, for example, has a documented 1,050,000-token window.
Open ~/.codex/config.toml and add or update these settings at the top level, before any [section] headers:
```
model = "gpt-5.6-sol"
model_context_window = 1000000
model_auto_compact_token_limit = 900000
```
The first setting selects the model. The second tells Codex to use a one-million-token context budget. The third starts automatic history compaction around 900,000 tokens, leaving some headroom. Restart Codex client and start a new session after saving.
To try the configuration for a single CLI session without changing your defaults:
```
codex -m gpt-5.6-sol \
-c model_context_window=1000000 \
-c model_auto_compact_token_limit=900000
```
Have fun, but also know that we tuned the default carefully!
Cursor is now part of @SpaceX.
Today, we have officially closed our acquisition. We will join the @SpaceXAI team to help make Grok the world's most useful AI and improve Grok Build, Grok Bot, Grok API, Cursor, and more.
SpaceX has built some of the most inspiring and impressive technology in the world, and we’re grateful for the opportunity to become part of such a special company. Onwards.
this is f**king insane
i cancelled my $20/mo claude subscription for this.
a dev found a way around OpenAI's usage limits and got unlimited GPT-5.6 Luna on Codex for FREE ($0)😳
He built a three step local workflow on a single machine.
This involved no servers, shared accounts, or a team.
Instead he used a GitHub repo, one prompt file, and a local coding agent.
Traditional users pay full price or hit usage limits. His cost: basically $0.
Here's the set up (3min):
→ Repo layer: Installed 'sol-advisor' from GitHub.
→ Prompt layer: Copied the 'savings-prompt' out of the repo.
→ Agent layer: Pointed codex at gpt 5.6 luna with the prompt loaded.
→ Activation: Loaded it into codex. Usage limits gone.
usage after activation: normal codex access. unlimited.
one trick. one window.
use this before it gets patched.
Codex tip: tell Sol to configure 𝗟𝘂𝗻𝗮 𝗠𝗮𝘅 𝗮𝘀 𝗮 𝘀𝘂𝗯𝗮𝗴𝗲𝗻𝘁.
𝗽𝗿𝗼𝗺𝗽𝘁:
create a custom agent named luna_worker at ~/.codex/agents/luna-worker.toml.
use these settings:
model = "gpt-5.6-luna"
model_reasoning_effort = "max"
give it a description and instructions for bounded delegated work. preserve the rest of my config. validate it against my installed Codex version, show me the diff, then use luna_worker for subagent tasks.