Fugu Ultra v2 vs Kimi K3
Fugu Ultra v2 took 22 min 51 s and $4.66 at list price, Kimi K3 took 4 min 25 s and $0.48 at list price. Fugu Ultra v2 took 5.2× as long and cost 9.7× as much.
Fugu Ultra v2
Sakana AI · $30.00/M out · 7 HN pts
Kimi K3
Moonshot AI · $16.00/M out · 9,870 HN pts
Breakout
Make a Breakout game I can play right now with the keyboard or the mouse. Give it several levels, a score and some juice.
Specs and numbers
| Fugu Ultra v2 | Kimi K3 | |
|---|---|---|
| Maker | Sakana AI | Moonshot AI |
| Made in | Japan | China |
| Released | 11 Sep 2026 | 16 Jul 2026 |
| Price in, per M tokens | $5.00 | $0.192 |
| Price out, per M tokens | $30.00 | $16.00 |
| Context | 1,000,000 tokens | 1,048,576 tokens |
| Weights | closed | open |
| Hacker News points | 7 | 9,870 |
| Time for the one prompt | 22 min 51 s | 4 min 25 s |
| List price of the one prompt | $4.66 | $0.48 |
Kimi K3 was cheaper: $4.18 less at list price. Kimi K3 was faster: 18 min 26 s less in total.
In the recording, both Breakout games play. Fugu Ultra v2 has no pelican: not run yet. Fugu Ultra v2 has no watch: not run yet. Fugu Ultra v2 has no landing page: not run yet. Fugu Ultra v2 has no logo: not run yet. Fugu Ultra v2 has no About page: not run yet.
Rebuild this screen experiment: Kimi K3's rebuild matched the screenshot at 68%; Fugu Ultra v2 was not in it. Tea Garden experiment: Kimi K3's game passed 5 of 5 checks; Fugu Ultra v2 was not in it.