StepFun’s Step 5 Preview with AI Games, Benchmarks & Pricing
Step 5 Preview is here, and StepFun's official game demos got my attention. We look at the racing world, Flappy Bird 3D, interactive characters, Chinese chess and more—then compare those highlights with real community builds, a Grok 4.7 rocket comparison, and Artificial Analysis's capability and cost results. 🔔 SUBSCRIBE TO BYTEFORWARD AI news, coding agents, model comparisons, benchmarks, and the things people are actually building: https://www.youtube.com/channel/UCGGHPOAzUaKsSc2yjsOeAFQ?sub_confirmation=1 Who is StepFun? Is this a useful coding option, or just a good highlight reel? Here's my honest take, including the rough results. Which would you give it first: a game, a website, or a stubborn bug? Let me know below. Subscribe to ByteForward for AI news with actual demos and the numbers behind them. CHAPTERS 0:00 Step 5 Preview has my attention 0:40 Official games and demos 2:54 Who is StepFun? 3:37 Artificial Analysis: capability and cost 4:56 Community games and Grok comparison 6:43 Working apps—and a failed game 8:00 Access, open weights, and my take OFFICIAL SOURCES + ACCESS Official launch article + games https://www.stepfun.com/step-5-preview Try: API platform https://platform.stepfun.ai/ Try: AI Studio https://studio.stepfun.ai/ Model documentation https://platform.stepfun.ai/docs/en/guides/models/step-5-preview Artificial Analysis results https://artificialanalysis.ai/models/step-5 COMMUNITY DEMOS Fruit Ninja — Beamsters https://x.com/Beamsters1/status/2101602538298761393 FPS — AJ https://x.com/ItsmeAjayKV/status/2101625390276227187 Canvas action game — Alamin https://x.com/iam_chonchol/status/2101952204353802312 AFTERBURN — Karan https://x.com/karankendre/status/2102042570964804044 Step vs Grok rockets — Karan https://x.com/karankendre/status/2102315519034737013 Web OS + Doom — Chetaslua https://x.com/chetaslua/status/2101901579414896714 Coding-agent evaluation — Elvis https://x.com/omarsar0/status/2102035017262149640 React + Playwright test — Nami https://x.com/Namiixbt/status/2101954299962220796 Convenience-store test — Peter https://x.com/PeterZP_AI/status/2101885398620213501 StepFun company background (Reuters) https://economictimes.indiatimes.com/tech/artificial-intelligence/chinese-ai-startup-stepfun-to-unwind-offshore-structure-to-pave-way-for-ipo/articleshow/130230521.cms Notes: benchmark figures were captured September 22, 2026. $0.72 is Artificial Analysis's average cost per benchmark task, not a price quote for a game. Community timings and one-shot claims are the creators' reports. This is a review of published demos, not a controlled hands-on comparison. StepFun says open weights are planned for October 15; they are not available at recording time. Official character/chess demos use external assets, as discussed in the video. All demo creators are credited on screen and linked above. Official demos are embedded in the StepFun article; no separate public playable URLs were verified for these examples. #Step5Preview #StepFun #AI
