First Codex reviews of GPT-6.1 Sol say it burns quota slowly but works slowly too
First seen on X 47 hours ago@blader ♥ 3,844
Reviews of GPT-6.1 Sol are coming in the day after DevDay. One Codex user ran Sol at max for 52 minutes, used 2.8 million tokens and spent 4% of the weekly limit and 17% of the 5-hour limit, saying a $20 plan can go a long way. The same post adds that it is extremely slow. A similar issue appeared on the Codex repository: the 5-hour window drains two to three times slower than with the previous GPT-5.6 Sol, but tasks that took a few minutes now take 10 to 12, so real throughput has not improved.
Others rate its efficiency highly. @blader wrote that in internal evals Opus 5.5 was twice as efficient as GPT-6 Sol, and 6.1 Sol came out at three times Opus 5.5 and 2.5 times Sonnet 5.5. If speed is the problem, the Ultrafast mode announced at DevDay runs up to 8x faster in Codex, but only Pro 500 and Enterprise can use it for now.