Uploaded May 2026 | Updated September 2026, 2 weeks ago
🚀 The LangChain 10 Days FREE Bootcamp is live: 10 lessons, free AI models only, from your first API call to a production grade RAG agent. Start with Day 0 for the roadmap and setup.
📺 Full playlist: youtube.com/watch?v=KJ3_NExk7-Q&list=PLW4pPr9JCovI&index=1
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I tested Gemini 3.5 Flash, Claude Sonnet 4.6 and Claude Opus 4.7 on the same 3 prompts
— a 3D Rubik's Cube, a Music Synthesizer and a Cafe Landing Page. Claude Sonnet couldn't
even finish. Opus took 20 minutes. Gemini 3.5 Flash was done before I finished reading
the prompt. And it only cost me $0.36.
⏱️ TIMESTAMPS
0:00 Intro — Gemini shocked me, Sonnet failed completely
1:00 Specs — 1M context for all 3, throughput very different
1:27 Cost — Gemini $1.5 vs Sonnet $3 vs Opus $5 per 1M input tokens
1:50 Output cost — Gemini $9 vs Sonnet $15 vs Opus $25
2:27 Multimodal — Gemini: text/image/video/audio/PDF | Claude: text+image only
2:58 Test setup — Claude Code (Open Router) vs Anti-Gravity 2.0
3:46 Prompt 1: 3D Rubik's Cube — single HTML file
5:19 20 min later — Gemini done, Sonnet STILL not finished!
5:38 Gemini Rubik's Cube — rotate, scramble, undo, sound
7:04 Sonnet verdict — FAILED
7:06 Testing Opus 4.7 — same prompt
8:25 Opus done in 10-15 min, Solve Hint feature present
9:41 Solve Hint broken — stuck in loop, 31 moves, zero progress
10:20 Prompt 2: Music Synthesizer (Web Audio API, Vanilla JS)
11:13 Gemini done before I finish reading prompt!
13:25 Gemini Synth — oscilloscope, spectrum, keyboard, record
14:35 57 notes recorded & played back — perfect!
15:05 Opus synth — buttons broken, record/stop/display fail
16:59 Prompt 3: Cafe landing page — cost & token comparison
19:22 Speed: Gemini 1-2 min, Opus 10 min, Sonnet 20 min
20:24 💰 Gemini $0.36 | Opus ~$0.72 | Sonnet ~$1.08
20:50 Tokens: Gemini 42K | Opus 31K | Sonnet 70K
21:21 Final verdict — Gemini wins speed, cost & quality
21:42 Outro
🔗 RESOURCES
Anti-Gravity 2.0 — antigravity.google
Open Router — openrouter.ai
Google AI Studio — aistudio.google.com
KGPtalkie.com — kgptalkie.com
📌 WHAT YOU'LL LEARN
✅ Live speed & quality test — Gemini 3.5 Flash vs Sonnet 4.6 vs Opus 4.7
✅ Real cost — $0.36 vs $2 for the same tasks
✅ Claude Sonnet 4.6 failed a basic 3D task after 20 minutes
✅ Music Synthesizer — Gemini fully working, Opus buttons broken
✅ Token count comparison — who uses more to do the same job
🚀 The LangChain 10 Days FREE Bootcamp is live: 10 lessons, free AI models only, from your first API call to a production grade RAG agent. Start with Day 0 for the roadmap and setup.
📺 Full playlist: youtube.com/watch?v=KJ3_NExk7-Q&list=PLW4pPr9JCovI&index=1
----------
I tested Gemini 3.5 Flash, Claude Sonnet 4.6 and Claude Opus 4.7 on the same 3 prompts
— a 3D Rubik's Cube, a Music Synthesizer and a Cafe Landing Page. Claude Sonnet couldn't
even finish. Opus took 20 minutes. Gemini 3.5 Flash was done before I finished reading
the prompt. And it only cost me $0.36.
⏱️ TIMESTAMPS
0:00 Intro — Gemini shocked me, Sonnet failed completely
1:00 Specs — 1M context for all 3, throughput very different
1:27 Cost — Gemini $1.5 vs Sonnet $3 vs Opus $5 per 1M input tokens
1:50 Output cost — Gemini $9 vs Sonnet $15 vs Opus $25
2:27 Multimodal — Gemini: text/image/video/audio/PDF | Claude: text+image only
2:58 Test setup — Claude Code (Open Router) vs Anti-Gravity 2.0
3:46 Prompt 1: 3D Rubik's Cube — single HTML file
5:19 20 min later — Gemini done, Sonnet STILL not finished!
5:38 Gemini Rubik's Cube — rotate, scramble, undo, sound
7:04 Sonnet verdict — FAILED
7:06 Testing Opus 4.7 — same prompt
8:25 Opus done in 10-15 min, Solve Hint feature present
9:41 Solve Hint broken — stuck in loop, 31 moves, zero progress
10:20 Prompt 2: Music Synthesizer (Web Audio API, Vanilla JS)
11:13 Gemini done before I finish reading prompt!
13:25 Gemini Synth — oscilloscope, spectrum, keyboard, record
14:35 57 notes recorded & played back — perfect!
15:05 Opus synth — buttons broken, record/stop/display fail
16:59 Prompt 3: Cafe landing page — cost & token comparison
19:22 Speed: Gemini 1-2 min, Opus 10 min, Sonnet 20 min
20:24 💰 Gemini $0.36 | Opus ~$0.72 | Sonnet ~$1.08
20:50 Tokens: Gemini 42K | Opus 31K | Sonnet 70K
21:21 Final verdict — Gemini wins speed, cost & quality
21:42 Outro
🔗 RESOURCES
Anti-Gravity 2.0 — antigravity.google
Open Router — openrouter.ai
Google AI Studio — aistudio.google.com
KGPtalkie.com — kgptalkie.com
📌 WHAT YOU'LL LEARN
✅ Live speed & quality test — Gemini 3.5 Flash vs Sonnet 4.6 vs Opus 4.7
✅ Real cost — $0.36 vs $2 for the same tasks
✅ Claude Sonnet 4.6 failed a basic 3D task after 20 minutes
✅ Music Synthesizer — Gemini fully working, Opus buttons broken
✅ Token count comparison — who uses more to do the same job
