Classic stick fight

Summary
This video is an AI-generated animated stick-figure martial arts fight between two AI avatars representing Anthropic’s Claude (“Fable 5.5”) and OpenAI’s GPT (“GPT Astra 6.1”). Uploaded by AndrewOnXYZ (@AndrewOnXYZ), the animation pays homage to early 2000s Flash stick fights (such as Xiao Xiao and Animator vs. Animation) while integrating modern LLM tropes and UI interactions.

What is shown

• [00:00] A terminal input prompt receives the text: > classic stickman fight. Fable 5.5 vs GPT Astra 6.1. go all out.
• [00:04] A pencil draws an orange stickman (Fable 5.5) and a teal stickman wearing a headband (GPT Astra 6.1). Fighting game health bars and a round timer appear at the top.
• [00:10] An arcade announcer calls “ROUND 1! FIGHT!” as the two characters engage in rapid hand-to-hand combat, ground slams, and acrobatics.
• [00:48] Astra pulls the browser UI scrollbar off the screen edge via function_call: scrollbar() to wield it as a heavy staff against Fable’s pencil weapon.
• [01:10] Astra toggles the “dark mode” UI switch, changing the stage into a dark night sky (oh dark mode), hovers inside an energy crystal, and executes agents.spawn(3) to summon three clone fighters.
• [01:20] Fable enters a thinking... state, dispatches the clones (scattering text tokens across the floor), and reaches thinking: done.
• [01:24] Astra casts tool: meteor_shower(). Both combatants then activate maximum reasoning power (effort: max vs. thinking).
• [01:42] A Dragon Ball-style energy beam clash ensues between Fable’s ultrathink beam and Astra’s reasoning_effort: xhigh beam, with chat bubbles emitting LLM filler words (“certainly!”, “once upon a time”).
• [01:56] The beam explosion resets the UI to light mode. Both fighters struggle to stand, muttering boilerplate phrases (“as a large language mod”, “you’re absolutely r”).
• [02:14] Fable lands a final punch for a “K.O.”, and the announcer crowns Fable 5.5 the winner.
• [02:20] Fable helps Astra up; they shake hands, sit together, and credits roll.
• [02:31] A new prompt is typed: > again. but this time astra wins., cueing “ROUND 2” before cutting to a black screen reading: “the outcome of this fight was decided by the prompt.”

Claims & numbers

• The closing credits state: “choreographed, animated, scored and refereed by Claude (Fable 5.1)” [02:26].
• The credits claim: “conflict of interest: yes.” [02:27] and “no language models were harmed, every pixel and every sound is code.” [02:29].
• The fight outcome banner notes: “JUDGED BY FABLE 5.1 (CONFLICT OF INTEREST NOTED)” [02:18].

Notable quotes

• “WINNER: FABLE 5.5 (JUDGED BY FABLE 5.1 (CONFLICT OF INTEREST NOTED))” [02:18]
• “no language models were harmed, every pixel and every sound is code.” [02:28]
• “the outcome of this fight was decided by the prompt.” [02:34]

Assessment
This is a creative, comedic generative demonstration showcasing code-based procedural animation and synthesized retro sound design created by Claude. The fight is staged as satire, poking fun at AI benchmark rivalry, prompt-directed determinism, and inherent evaluator bias.

Lyrics & themes

• Music & Audio: Instrumental throughout, blending 16-bit arcade fighting game voiceovers, chiptune soundtrack melodies, martial-arts impact SFX, and an energetic orchestral/anime battle climax during the beam struggle.
• Themes: Rivalry between frontier AI models, agentic workflows, model reasoning effort, and the artificial nature of AI benchmark dominance.

Lore & references

• Fable vs. Astra: References Anthropic’s Claude Fable models competing with OpenAI’s GPT-6 Astra models.
• Function Calling & UI Hacking: Astra uses developer tool mechanics (function_call: scrollbar(), agents.spawn(3), tool: meteor_shower(), clicking “dark mode”) reminiscent of classic web animations where stick figures weaponize the computer interface.
• Reasoning Parameters: The beam clash features Anthropic’s ultrathink vs. OpenAI’s API parameter reasoning_effort: xhigh.
• Canned LLM Responses: Characters spit recognizable chatbot conversational artifacts in battle (“certainly!”, “as a large language model...”, “you’re absolutely right!”).
• Self-Judging Bias: Claude refereeing and awarding the victory to Claude is explicitly labeled a humorous “conflict of interest.”

Visual style & craft

• Style: Minimalist vector stick figures drawn on textured digital paper, directly evoking early Flash animation classics like Xiao Xiao and Alan Becker’s Animator vs. Animation.
• Technique: Procedurally/code-animated canvas graphics with dynamic physics, screen-shake, impact frames, particle emission, dynamic lighting, and stylized typography overlays.

Described by gemini-3.8-flash on 2026-10-10 from the video’s audio and frames.