Grok 4.3 (Venice) on Build a 3D Sonic-style platformer in three.js
XGrok 4.3 (Venice) · venice-mini-agent v1.2 · cloud · 2026-10-15 · by @bobsiopener
- Cost
- $0.01
- Wall time
- 22s
- Human step-ins
- 0
- Outcome
- Partial
Compare with other models on this task →
Superseded. This run was rescored on 2026-10-19 and replaced by a newer run. It no longer counts toward rankings, use-case tables or the data export; it is kept here for the record.
Summary
Exact prompt
In one pass, build a small 3D Sonic-style platformer as a single file index.html using three.js from https://unpkg.com/three@0.160.0/build/three.module.js (ES module import). Requirements: a player character that runs with arrow keys or WASD and jumps with Space; a third-person camera that follows the player; at least 20 collectible rings that raise a ring counter in a HUD; at least 3 floating platforms; a speed boost pad; a goal at the end that shows a "You win" message; falling off the level respawns the player. No other files.
Task prompt given to the agent (headless, offline, synthetic fixture inputs): In one pass, build a small 3D Sonic-style platformer as a single file index.html using three.js from https://unpkg.com/three@0.160.0/build/three.module.js (ES module import). Requirements: a player character that runs with arrow keys or WASD and jumps with Space; a third-person camera that follows the player; at least 20 collectible rings that raise a ring counter in a HUD; at least 3 floating platforms; a speed boost pad; a goal at the end that shows a "You win" message; falling off the level respawns the player. No other files. Inspired by https://x.com/cherry_mx_reds/status/2104597898998460813 (unverified; not checked with the author). This is an independent re-run on a reproducible synthetic task; it does not report or reproduce the original post's numbers. Cost is real Venice spend (paid from DIEM credit), as reported by Venice.
Success criteria: All automated rubric checks pass: imports three@0.160.0 module; no uncaught console errors in headless Chrome; Space jump; arrow/WASD; ring counter HUD; >=20 rings (count literal); boost pad; win message; respawn on fall.
Setup notes: Harness: venice-mini-agent v1.2 via Venice OpenAI-compatible API. Minimal OpenAI-compatible tool loop (/workspace/usecase-runner/venice_agent.py): tools list_files/read_file/write_file/run_shell in the work dir, max 25 turns, max_tokens 16000/call, temperature 0.2, Venice system prompt and web search off, $0.08 per-run cost cap. Identical for all Venice models. Cost source: Venice /api/v1/models model_spec.pricing (USD per 1M tokens), fetched 2026-10-14; cost computed from per-call usage. Paid from Bob's DIEM daily allowance. input_tokens includes cached reads; cached_tokens = cache reads; cache_write_tokens = cache writes (0 if not reported). Single run, no retries; scored automatically (8/9 checks). Runner notes: Adapted: original 5 effort levels/up to 2.5h; run once at --effort low as a single-file browser game. Case 03: Claude runs used --effort low; this harness has no effort setting. Single run, no retries. Same rubric/score.py as Claude runs. Web disabled.
Metrics
- Cost
- $0.01
- Wall time
- 22s
- Human step-ins
- 0
- Turns
- 3
| Model | Input tok | Output tok | Cost |
|---|---|---|---|
| XGrok 4.3 (Venice)venice/grok-4-3 | 3,878 | 2,373 | $0.01 |
Reproduce this run
- Use the use case prompt on the use case page.
- Same setup: Grok 4.3 (Venice) (venice/grok-4-3) via
venice-mini-agent v1.2, cloud. - It counts as a success only if it meets every success criterion: All automated rubric checks pass: imports three@0.160.0 module; no uncaught console errors in headless Chrome; Space jump; arrow/WASD; ring counter HUD; >=20 rings (count literal); boost pad; win message; respawn on fall.
- Log model, tokens, wall time, human step-ins and the evidence log, then submit it as a reproduction. A different model? Submit a head-to-head rerun.
How runs are scored: Methodology.
Was this useful?
Automated checks
Trust 80% comes from these checks (how Trust % works).
- Run date is not in the future : passed
- Model is in the dated pricing table : passed
- Cost recomputed from tokens matches : passed
- Cached tokens are consistent : passed
- Output throughput is plausible : passed
- Autonomy matches step-ins : passed
- Step-ins do not exceed turns : passed
- Retries agree with first-try result : passed
- Evidence log SHA-256 matches : passed
- Evidence log is substantial : passed
Evidence log
{"turn": 1, "response": {"id": "e86240c1-eabd-9d09-aec1-6b78eb2e19de", "object": "chat.completion", "created": 1792023711, "model": "grok-4-3", "choices": [{"index": 0, "message": {"role": "assistant", "content": null, "refusal": null, "reasoning_content": "[encrypted reasoning omitted, 989 chars]", "reasoning_encrypted": true, "reasoning_details": [{"type": "reasoning.encrypted", "format": "xai-responses-v1", "index": 0, "id": "rs_e86240c1-eabd-9d09-aec1-6b78eb2e19de", "data": "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"}], "tool_calls": [{"id": "call-38dea707-b467-454b-a020-d639cb7f46c5-0", "type": "function", "function": {"name": "list_files", "arguments": "{\"path\":\".\"}"}}]}, "finish_reason": "tool_calls", "logprobs": null}], "usage": {"prompt_tokens": 610, "completion_tokens": 175, "total_tokens": 785, "prompt_tokens_details": {"cached_tokens": 128}, "cache_read_input_tokens": 128, "completion_tokens_details": {"reasoning_tokens": 165}}, "cost": {"usd": 0, "diem": 0.00120913}, "venice_parameters": {"strip_thinking_response": false, "disable_thinking": false, "enable_e2ee": true, "enable_web_search": "off", "enable_web_scraping": false, "enable_web_citations": false, "include_search_results_in_stream": false, "include_venice_system_prompt": false, "enable_x_search": false, "web_search_citations": [], "return_search_results_as_documents": false}}}
{"turn": 1, "tool": "list_files", "args": {"path": "."}, "result": ""}
{"turn": 2, "response": {"id": "38835a77-6148-9033-b18c-e8922f390281", "object": "chat.completion", "created": 1792023713, "model": "grok-4-3", "choices": [{"index": 0, "message": {"role": "assistant", "content": null, "refusal": null, "reasoning_content": "I will create a single index.html file containing the entire 3D Sonic-style platformer using Three.js from the specified CDN as an ES module.\n\n[encrypted reasoning omitted, 649 chars]", "reasoning_encrypted": true, "reasoning_details": [{"type": "reasoning.encrypted", "format": "xai-responses-v1", "index": 0, "id": "rs_38835a77-6148-9033-b18c-e8922f390281", "data": "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"}], "tool_calls": [{"id": "call-31807452-c839-4a74-a19f-7a74b54140f1-1", "type": "function", "function": {"name": "write_file", "arguments": "{\"path\":\"index.html\",\"content\":\"<!DOCTYPE html>\\n<html lang=\\\"en\\\">\\n<head>\\n<meta charset=\\\"UTF-8\\\">\\n<title>Sonic 3D Platformer</title>\\n<style>\\nbody { margin: 0; overflow: hidden; font-family: Arial, sans-serif; }\\n#hud { position: absolute; top: 20px; left: 20px; color: white; font-size: 24px; text-shadow: 2px 2px 4px black; }\\n#message { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); color: white; font-size: 48px; text-shadow: 3px 3px 6px black; display: none; }\\n</style>\\n</head>\\n<body>\\n<div id=\\\"hud\\\">RINGS: <span id=\\\"ringCount\\\">0</span></div>\\n<div id=\\\"message\\\"></div>\\n<script type=\\\"module\\\">\\nimport * as THREE from 'https://unpkg.com/three@0.160.0/build/three.module.js';\\n\\nconst scene = new THREE.Scene();\\nscene.fog = new THREE.Fog(0x87CEEB, 50, 200);\\n\\nconst camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);\\nconst renderer = new THREE.WebGLRenderer();\\nrenderer.setSize(window.innerWidth, window.innerHeight);\\nrenderer.shadowMap.enabled = true;\\ndocument.body.appendChild(renderer.domElement);\\n\\nconst light = new THREE.DirectionalLight(0xffffff, 1);\\nlight.position.set(50, 100, 50);\\nlight.castShadow = true;\\nlight.shadow.mapSize.width = 2048;\\nlight.shadow.mapSize.height = 2048;\\nscene.add(light);\\nscene.add(new THREE.AmbientLight(0x404040));\\n\\nconst ground = new THREE.Mesh(\\n new THREE.PlaneGeometry(100, 100),\\n new THREE.MeshLambertMaterial({ color: 0x228B22 })\\n);\\nground.rotation.x = -Math.PI / 2;\\nground.receiveShadow = true;\\nscene.add(ground);\\n\\nconst platforms = [];\\nfunction createPlatform(x, y, z, w, h, d, color = 0x8B4513) {\\n const p = new THREE.Mesh(\\n new THREE.BoxGeometry(w, h, d),\\n new THREE.MeshLambertMaterial({ color })\\n );\\n p.position.set(x, y, z);\\n p.castShadow = true;\\n p.receiveShadow = true;\\n scene.add(p);\\n platforms.push(p);\\n return p;\\n}\\n\\ncreatePlatform(0, 2, -15, 10, 1, 10);\\ncreatePlatform(15, 5, -25, 8, 1, 8, 0xA0522D);\\ncreatePlatform(-12, 8, -40, 12, 1, 6, 0xCD853F);\\n\\nconst rings = [];\\nfunction createRing(x, y, z) {\\n const ring = new THREE.Mesh(\\n new THREE.TorusGeometry(0.8, 0.15, 8, 16),\\n new THREE.MeshLambertMaterial({ color: 0xFFD700, emissive: 0xFFD700 })\\n );\\n ring.position.set(x, y, z);\\n ring.castShadow = true;\\n scene.add(ring);\\n rings.push(ring);\\n}\\n\\nfor (let i = 0; i < 20; i++) {\\n const x = (i % 5) * 6 - 12;\\n const z = -10 - Math.floor(i / 5) * 8;\\n createRing(x, 3 + (i % 3) * 2, z);\\n}\\n\\nconst boostPad = new THREE.Mesh(\\n new THREE.BoxGeometry(4, 0.5, 4),\\n new THREE.MeshLambertMaterial({ color: 0x00FF00 })\\n);\\nboostPad.position.set(20, 0.25, -30);\\nscene.add(boostPad);\\n\\nconst goal = new THREE.Mesh(\\n new THREE.CylinderGeometry(2, 2, 8, 8),\\n new THREE.MeshLambertMaterial({ color: 0xFF4500 })\\n);\\ngoal.position.set(0, 4, -70);\\nscene.add(goal);\\n\\nconst player = new THREE.Mesh(\\n new THREE.CapsuleGeometry(0.6, 1.2, 4, 8),\\n new THREE.MeshLambertMaterial({ color: 0x0000FF })\\n);\\nplayer.position.set(0, 3, 0);\\nplayer.castShadow = true;\\nscene.add(player);\\n\\nconst keys = {};\\nlet velocity = new THREE.Vector3();\\nlet onGround = false;\\nlet ringCount = 0;\\nlet respawnPos = new THREE.Vector3(0, 3, 0);\\n\\nfunction updateHUD() {\\n document.getElementById('ringCount').textContent = ringCount;\\n}\\n\\nfunction checkRingCollisions() {\\n for (let i = rings.length - 1; i >= 0; i--) {\\n if (player.position.distanceTo(rings[i].position) < 2) {\\n scene.remove(rings[i]);\\n rings.splice(i, 1);\\n ringCount++;\\n updateHUD();\\n }\\n }\\n}\\n\\nfunction checkBoost() {\\n if (player.position.distanceTo(boostPad.position) < 3) {\\n velocity.z = -25;\\n }\\n}\\n\\nfunction checkGoal() {\\n if (player.position.distanceTo(goal.position) < 5) {\\n const msg = document.getElementById('message');\\n msg.textContent = 'You win!';\\n msg.style.display = 'block';\\n }\\n}\\n\\nfunction respawn() {\\n player.position.copy(respawnPos);\\n velocity.set(0, 0, 0);\\n}\\n\\nwindow.addEventListener('keydown', e => keys[e.key.toLowerCase()] = true);\\nwindow.addEventListener('keyup', e => keys[e.key.toLowerCase()] = false);\\n\\nlet yaw = 0;\\nlet pitch = 0.6;\\n\\nfunction updateCamera() {\\n const offset = new THREE.Vector3(0, 8, 15);\\n offset.applyAxisAngle(new THREE.Vector3(0, 1, 0), yaw);\\n camera.position.lerp(player.position.clone().add(offset), 0.1);\\n camera.lookAt(player.position.x, player.position.y + 2, player.position.z);\\n}\\n\\nfunction animate() {\\n requestAnimationFrame(animate);\\n\\n const speed = 12;\\n const accel = 40;\\n const friction = 0.85;\\n const jumpForce = 15;\\n const gravity = -35;\\n\\n let moveX = 0, moveZ = 0;\\n if (keys['arrowleft'] || keys['a']) moveX -= 1;\\n if (keys['arrowright'] || keys['d']) moveX += 1;\\n if (keys['arrowup'] || keys['w']) moveZ -= 1;\\n if (keys['arrowdown'] || keys['s']) moveZ += 1;\\n\\n if (moveX !== 0 || moveZ !== 0) {\\n const len = Math.hypot(moveX, moveZ);\\n moveX /= len; moveZ /= len;\\n const dir = new THREE.Vector3(moveX, 0, moveZ);\\n dir.applyAxisAngle(new THREE.Vector3(0, 1, 0), yaw);\\n velocity.x += dir.x * accel * 0.016;\\n velocity.z += dir.z * accel * 0.016;\\n }\\n\\n velocity.x *= friction;\\n velocity.z *= friction;\\n\\n if (keys[' '] && onGround) {\\n velocity.y = jumpForce;\\n onGround = false;\\n }\\n\\n velocity.y += gravity * 0.016;\\n player.position.x += velocity.x * 0.016;\\n player.position.y += velocity.y * 0.016;\\n player.position.z += velocity.z * 0.016;\\n\\n onGround = false;\\n if (player.position.y <= 1.5) {\\n player.position.y = 1.5;\\n velocity.y = 0;\\n onGround = true;\\n }\\n\\n for (const p of platforms) {\\n const py = p.position.y + 0.5;\\n if (Math.abs(player.position.x - p.position.x) < p.geometry.parameters.width / 2 + 0.6 &&\\n Math.abs(player.position.z - p.position.z) < p.geometry.parameters.depth / 2 + 0.6 &&\\n player.position.y <= py + 0.1 && player.position.y > py - 1) {\\n player.position.y = py + 0.6;\\n velocity.y = 0;\\n onGround = true;\\n }\\n }\\n\\n if (player.position.y < -20) respawn();\\n\\n checkRingCollisions();\\n checkBoost();\\n checkGoal();\\n\\n if (keys['arrowleft'] || keys['a']) yaw += 0.03;\\n if (keys['arrowright'] || keys['d']) yaw -= 0.03;\\n\\n updateCamera();\\n renderer.render(scene, camera);\\n}\\n\\nwindow.addEventListener('resize', () => {\\n camera.aspect = window.innerWidth / window.innerHeight;\\n camera.updateProjectionMatrix();\\n renderer.setSize(window.innerWidth, window.innerHeight);\\n});\\n\\nupdateHUD();\\nanimate();\\n</script>\\n</body>\\n</html>\"}"}}]}, "finish_reason": "tool_calls", "logprobs": null}], "usage": {"prompt_tokens": 625, "completion_tokens": 2103, "total_tokens": 2728, "prompt_tokens_details": {"cached_tokens": 128}, "cache_read_input_tokens": 128, "completion_tokens_details": {"reasoning_tokens": 96}}, "cost": {"usd": 0, "diem": 0.0066866700000000005}, "venice_parameters": {"strip_thinking_response": false, "disable_thinking": false, "enable_e2ee": true, "enable_web_search": "off", "enable_web_scraping": false, "enable_web_citations": false, "include_search_results_in_stream": false, "include_venice_system_prompt": false, "enable_x_search": false, "web_search_citations": [], "return_search_results_as_documents": false}}}
{"turn": 2, "tool": "write_file", "args": {"path": "index.html", "content": "<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n<meta charset=\"UTF-8\">\n<title>Sonic 3D Platformer</title>\n<style>\nbody { margin: 0; overflow: hidden; font-family: Arial, sans-serif; }\n#hud { position: absolute; top: 20px; left: 20px; color: white; font-size: 24px; text-shadow: 2px 2px 4px black; }\n#message { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); color: white; font-size: 48px; text-shadow: 3px 3px 6px black; display: none; }\n</style>\n</head>\n<body>\n<div id=\"hud\">RINGS: <span id=\"ringCount\">0</span></div>\n<div id=\"message\"></div>\n<script type=\"module\">\nimport * as THREE from 'https://unpkg.com/three@0.160.0/build/three.module.js';\n\nconst scene = new THREE.Scene();\nscene.fog = new THREE.Fog(0x87CEEB, 50, 200);\n\nconst camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);\nconst renderer = new THREE.WebGLRenderer();\nrenderer.setSize(window.innerWidth, window.innerHeight);\nrenderer.shadowMap.enabled = true;\ndocument.body.appendChild(renderer.domElement);\n\nconst light = new THREE.DirectionalLight(0xffffff, 1);\nlight.position.set(50, 100, 50);\nlight.castShadow = true;\nlight.shadow.mapSize.width = 2048;\nlight.shadow.mapSize.height = 2048;\nscene.add(light);\nscene.add(new THREE.AmbientLight(0x404040));\n\nconst ground = new THREE.Mesh(\n new THREE.PlaneGeometry(100, 100),\n new THREE.MeshLambertMaterial({ color: 0x228B22 })\n);\nground.rotation.x = -Math.PI / 2;\nground.receiveShadow = true;\nscene.add(ground);\n\nconst platforms = [];\nfunction createPlatform(x, y, z, w, h, d, color = 0x8B4513) {\n const p = new THREE.Mesh(\n new THREE.BoxGeometry(w, h, d),\n new THREE.MeshLambertMaterial({ color })\n );\n p.position.set(x, y, z);\n p.castShadow = true;\n p.receiveShadow = true;\n scene.add(p);\n platforms.push(p);\n return p;\n}\n\ncreatePlatform(0, 2, -15, 10, 1, 10);\ncreatePlatform(15, 5, -25, 8, 1, 8, 0xA0522D);\ncreatePlatform(-12, 8, -40, 12, 1, 6, 0xCD853F);\n\nconst rings = [];\nfunction createRing(x, y, z) {\n const ring = new THREE.Mesh(\n new THREE.TorusGeometry(0.8, 0.15, 8, 16),\n new THREE.MeshLambertMaterial({ color: 0xFFD700, emissive: 0xFFD700 })\n );\n ring.position.set(x, y, z);\n ring.castShadow = true;\n scene.add(ring);\n rings.push(ring);\n}\n\nfor (let i = 0; i < 20; i++) {\n const x = (i % 5) * 6 - 12;\n const z = -10 - Math.floor(i / 5) * 8;\n createRing(x, 3 + (i % 3) * 2, z);\n}\n\nconst boostPad = new THREE.Mesh(\n new THREE.BoxGeometry(4, 0.5, 4),\n new THREE.MeshLambertMaterial({ color: 0x00FF00 })\n);\nboostPad.position.set(20, 0.25, -30);\nscene.add(boostPad);\n\nconst goal = new THREE.Mesh(\n new THREE.CylinderGeometry(2, 2, 8, 8),\n new THREE.MeshLambertMaterial({ color: 0xFF4500 })\n);\ngoal.position.set(0, 4, -70);\nscene.add(goal);\n\nconst player = new THREE.Mesh(\n new THREE.CapsuleGeometry(0.6, 1.2, 4, 8),\n new THREE.MeshLambertMaterial({ color: 0x0000FF })\n);\nplayer.position.set(0, 3, 0);\nplayer.castShadow = true;\nscene.add(player);\n\nconst keys = {};\nlet velocity = new THREE.Vector3();\nlet onGround = false;\nlet ringCount = 0;\nlet respawnPos = new THREE.Vector3(0, 3, 0);\n\nfunction updateHUD() {\n document.getElementById('ringCount').textContent = ringCount;\n}\n\nfunction checkRingCollisions() {\n for (let i = rings.length - 1; i >= 0; i--) {\n if (player.position.distanceTo(rings[i].position) < 2) {\n scene.remove(rings[i]);\n rings.splice(i, 1);\n ringCount++;\n updateHUD();\n }\n }\n}\n\nfunction checkBoost() {\n if (player.position.distanceTo(boostPad.position) < 3) {\n velocity.z = -25;\n }\n}\n\nfunction checkGoal() {\n if (player.position.distanceTo(goal.position) < 5) {\n const msg = document.getElementById('message');\n msg.textContent = 'You win!';\n msg.style.display = 'block';\n }\n}\n\nfunction respawn() {\n player.position.copy(respawnPos);\n velocity.set(0, 0, 0);\n}\n\nwindow.addEventListener('keydown', e => keys[e.key.toLowerCase()] = true);\nwindow.addEventListener('keyup', e => keys[e.key.toLowerCase()] = false);\n\nlet yaw = 0;\nlet pitch = 0.6;\n\nfunction updateCamera() {\n const offset = new THREE.Vector3(0, 8, 15);\n offset.applyAxisAngle(new THREE.Vector3(0, 1, 0), yaw);\n camera.position.lerp(player.position.clone().add(offset), 0.1);\n camera.lookAt(player.position.x, player.position.y + 2, player.position.z);\n}\n\nfunction animate() {\n requestAnimationFrame(animate);\n\n const speed = 12;\n const accel = 40;\n const friction = 0.85;\n const jumpForce = 15;\n const gravity = -35;\n\n let moveX = 0, moveZ = 0;\n if (keys['arrowleft'] || keys['a']) moveX -= 1;\n if (keys['arrowright'] || keys['d']) moveX += 1;\n if (keys['arrowup'] || keys['w']) moveZ -= 1;\n if (keys['arrowdown'] || keys['s']) moveZ += 1;\n\n if (moveX !== 0 || moveZ !== 0) {\n const len = Math.hypot(moveX, moveZ);\n moveX /= len; moveZ /= len;\n const dir = new THREE.Vector3(moveX, 0, moveZ);\n dir.applyAxisAngle(new THREE.Vector3(0, 1, 0), yaw);\n velocity.x += dir.x * accel * 0.016;\n velocity.z += dir.z * accel * 0.016;\n }\n\n velocity.x *= friction;\n velocity.z *= friction;\n\n if (keys[' '] && onGround) {\n velocity.y = jumpForce;\n onGround = false;\n }\n\n velocity.y += gravity * 0.016;\n player.position.x += velocity.x * 0.016;\n player.position.y += velocity.y * 0.016;\n player.position.z += velocity.z * 0.016;\n\n onGround = false;\n if (player.position.y <= 1.5) {\n player.position.y = 1.5;\n velocity.y = 0;\n onGround = true;\n }\n\n for (const p of platforms) {\n const py = p.position.y + 0.5;\n if (Math.abs(player.position.x - p.position.x) < p.geometry.parameters.width / 2 + 0.6 &&\n Math.abs(player.position.z - p.position.z) < p.geometry.parameters.depth / 2 + 0.6 &&\n player.position.y <= py + 0.1 && player.position.y > py - 1) {\n player.position.y = py + 0.6;\n velocity.y = 0;\n onGround = true;\n }\n }\n\n if (player.position.y < -20) respawn();\n\n checkRingCollisions();\n checkBoost();\n checkGoal();\n\n if (keys['arrowleft'] || keys['a']) yaw += 0.03;\n if (keys['arrowright'] || keys['d']) yaw -= 0.03;\n\n updateCamera();\n renderer.render(scene, camera);\n}\n\nwindow.addEventListener('resize', () => {\n camera.aspect = window.innerWidth / window.innerHeight;\n camera.updateProjectionMatrix();\n renderer.setSize(window.innerWidth, window.innerHeight);\n});\n\nupdateHUD();\nanimate();\n</script>\n</body>\n</html>"}, "result": "wrote 6358 chars"}
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