Real head-to-head · same prompt, one shot
Claude Opus 5 vs MiMo-V2.6 Pro
The new Anthropic flagship — benched on all 45 one-shot builds the day it landed. vs Open weights that score level with Opus 5 on agents, for cents.
Head-to-head verdict: Claude Opus 5 wins 30–13 with 7 ties.
What I tested — same prompt, two models
I run the same fixed prompt set through every new model the day it drops — same string, one shot, single HTML file out — and I score the result 0–10 on whether it ran, how close it hit the brief, and how good it looked. Below is what came out when I gave the exact same prompts to Claude Opus 5 and MiMo-V2.6 Pro, side by side, on 50 shared tasks inside the Agent Operating System.
Both models were given identical prompts inside the Agent Operating System — no help, no iteration, no "best of N" tricks. I run each prompt once, save the HTML file the model produces, and score it 0–10 on whether it ran, how close it hit the brief, and how good it looked. The scoring is mine. The verdicts below are pulled from my source comparison guides at agentos.guide where I publish every score and the reasoning behind it.
Claude Opus 5 · Benched on all 45 GoldieBench tasks via API on release day, incremental deploys as scores landed.
MiMo-V2.6 Pro · Benched on all 50 GoldieBench tasks through OpenRouter at the model's default reasoning effort: one-shot build, real rendered poster, Opus 4.8 vision judge, game tasks skill-infused. No retries, no hand fixes; the broken builds are scored as they shipped.
Side-by-side on 50 shared tasks
Click any cell to play that model's actual one-shot attempt. Medals are derived from my 0–10 scores per task (highest = 🥇, second = 🥈, third = 🥉).
Task ↓
Claude Opus 5
MiMo-V2.6 Pro
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Where Claude Opus 5 beat MiMo-V2.6 Pro
The tasks where I gave Claude Opus 5 a higher 0–10 score on the same prompt — with the actual commentary from my source guides.
Rpg
Game
Claude Opus 5 8.7
·
MiMo-V2.6 Pro 1.5
(+7.2)
· Polished 3D RPG
What I saw: Strong: gorgeous low-poly 3D world with a real armored player, visible sword-wielding enemies, full HUD (HP/stamina/souls, kills/threats/gold), inventory hotbar and functional minimap all rendering cleanly. Weak: it's more third-person action-RPG than classic top-down sprite RPG,…
Solar
Sim
Claude Opus 5 8.6
·
MiMo-V2.6 Pro 1.5
(+7.1)
· asteroid belt polish
What I saw: Strong 3D build: banded textured Sun with layered glow, all planets on inclined elliptical orbits, visible Earth+Moon, Saturn's rings, a convincing asteroid belt, plus real-data info panel and full follow/speed/scale controls. Minor knocks: labels are sparse (only some planets ta…
Gtafoot
Game
Claude Opus 5 8.4
·
MiMo-V2.6 Pro 2.5
(+5.9)
What I saw: Gorgeous dusk city with clean third-person rig, polished HUD (health/stamina/ammo/wanted stars/minimap), fountain, benches, cop car and cover props — clearly a strong shippable build. Screenshot shows no active enemies or combat in frame, so I can't confirm visible working shooti…
Pathtracer
Sim
Claude Opus 5 8.7
·
MiMo-V2.6 Pro 3.0
(+5.7)
· Cornell glass metals
What I saw: Strong Cornell-box render with convincing refractive glass, rough gold/aluminium metals, checkerboard floor, soft area-light shadows and visible color bleeding — a genuine progressive path tracer (102 SPP, HDR float16). Slightly noisy and the exposure looks a touch blown/washed, …
Racing
Game
Claude Opus 5 8.7
·
MiMo-V2.6 Pro 3.0
(+5.7)
· Polished neon racer
What I saw: Gorgeous low-poly scene with a detailed F1 kart, banked track, barriers, cones, barrels, grandstands, trees and a live minimap plus rich HUD (velocity, surface, laps, threats). Combat/threats system present per HUD adds depth beyond a plain racer; only mild concern is combat visi…
Where MiMo-V2.6 Pro beat Claude Opus 5
The tasks where I gave MiMo-V2.6 Pro a higher 0–10 score on the same prompt — with the actual commentary from my source guides.
Arcade
Game
MiMo-V2.6 Pro 8.6
·
Claude Opus 5 6.5
(+2.1)
· 3D neon snake
What I saw: Stunning 3D reinterpretation of Snake as a WebGL arena viper — polished lighting, segmented tail, working minimap, pickups, and clean neon HUD all render crisply. Strong on-brief execution that clearly outclasses the flat 2D field; only slight risk is that the elaborate combat fr…
Neonblaster
Game
MiMo-V2.6 Pro 8.7
·
Claude Opus 5 6.8
(+1.9)
· 3D neon top-shooter
What I saw: Renders a gorgeous 3D synthwave arena with detailed ship, glowing perspective grid, floating debris, and a fully polished HUD (hull/shield/boost meters, radar, boss bar, combo) backed by scheduled synth music and juicy SFX. Strong on-brief execution that rivals the field best; on…
Neoncity
Game
MiMo-V2.6 Pro 8.7
·
Claude Opus 5 7.4
(+1.3)
· Neon Runner Combat
What I saw: Gorgeous rendered scene—gradient cyberpunk sky, dense emissive-window skyscrapers, overpass structures, neon road glow and a detailed player craft with full combat HUD, minimap, bolts and 'RAM IMPACT' feedback all working; the polished driving-shooter loop clearly beats the gener…
Mlx Speedtest
Other
MiMo-V2.6 Pro 8.3
·
Claude Opus 5 7.4
(+0.9)
What I saw: Strong, polished 3D benchmark viz with clean neon-on-dark palette, orbiting bandwidth rings, labeled per-model bars, and a coherent live telemetry panel that all reads as a believable MLX speedtest. Slightly generic bar-chart concept and low 25fps hold it just under the field's b…
Matrix
Visual
MiMo-V2.6 Pro 8.6
·
Claude Opus 5 7.8
(+0.8)
· 3D depth rain
What I saw: Strong 3D-perspective take on Matrix rain with katakana glyphs, depth-of-field blur on lead characters, fog, ground grid, and polished HUD — visibly beats a flat 2D field. Only minor nit is the mid-screen horizontal seam and 24 FPS, but the atmosphere and glyph authenticity are top-tier.
Strengths & weaknesses I logged
Claude Opus 5
Strengths
- Frontier-class coding + agentic reasoning (Claude 5 family)
- 1M-token context — reads an entire codebase in one call
- Benched here with skill-infused game prompts the day of release
Trade-offs
- Premium pricing ($5/$25 per M) — route the everyday 90% to cheaper lanes
- Reasoning-by-default eats token budgets unless tuned per call
MiMo-V2.6 Pro
Strengths
- Simulations and visual pieces are top-tier one-shots: the black hole lensing scored 9.0 and the matrix rain, lava lamp, ocean waves, web desktop, boids and galaxy all landed 8.6 or higher
- Strong flight and driving output when the build holds together: a polished 3D dogfight (8.6), a flight sim (8.4) and the synthwave outrun (8.4)
- Big, complete files: builds ran 30 to 70 KB with full HUDs, control hints and settings panels
- The weights are MIT and on Hugging Face, so the same model can run on your own hardware
Trade-offs
- 18 of 50 builds scored under 5: long game files shipped with garbled tokens (a stray 'martin' or 'martial' identifier breaks the whole script), uninitialised references and bad canvas values, so the HUD paints but the 3D scene stays black
- Two hard crashes: the RPG threw an engine fault on load and the solar system rendered nothing at all
- It reasons for a long time at default effort: builds took 5 to 60 minutes each through OpenRouter
Pricing & context — the spec sheet
| Spec | Claude Opus 5 | MiMo-V2.6 Pro |
|---|---|---|
| Vendor | Anthropic | Xiaomi |
| Context window | 1,000,000 tokens | 1,000,000 tokens |
| Price | $5 / $25 per M | $0.435 in / $0.87 out per M tokens |
| Pricing detail | Anthropic's brand-new flagship — the first Opus of the Claude 5 family, with a 1M-token context window. Benched via API the day it dropped; game tasks use our skill-infused AAA build prompts. | Xiaomi's September 2026 open-weight flagship (MIT licence, 1.02T total / 42B active parameters). $0.435 per million input tokens and $0.87 per million output on OpenRouter, with cache hits at a fraction of a cent, which is roughly a quarter of Grok 4.7 and a twentieth of the closed frontier models it scores level with on agent benchmarks. |
| Release | 2026-07 | 2026-09 |
| Bench coverage | 50/50 scored · avg 8.27/10 | 50/50 scored · avg 6.35/10 |
The verdict — which should you pick?
Across 50 scored shared tasks, Claude Opus 5 averaged 8.27/10, beating MiMo-V2.6 Pro's 6.35/10 by 1.92 points. Pick Claude Opus 5 when the build has to ship on the first prompt and you can afford the trade-offs in the comparison below.
If you only run one of these inside your stack, the head-to-head average above is the call. If you can run both, my honest play is to wire Claude Opus 5 and MiMo-V2.6 Pro both into the Agent Operating System and dispatch each from the kanban by task type — hardest agentic builds → Claude Opus 5, simulations, shaders and visual scenes in one shot, at a fraction of frontier prices → MiMo-V2.6 Pro. That's the same setup I run for the 4,000+ founders inside the AI Profit Boardroom.
FAQ — Claude Opus 5 vs MiMo-V2.6 Pro
Which is better, Claude Opus 5 or MiMo-V2.6 Pro?
On Goldie Bench, Claude Opus 5 averages 8.27/10 across the shared tasks, with 13 gold, 7 silver, 5 bronze overall. MiMo-V2.6 Pro averages 6.35/10, with 5 gold, 8 silver, 4 bronze. Claude Opus 5 wins the head-to-head 30–13.
How much does Claude Opus 5 cost vs MiMo-V2.6 Pro?
Claude Opus 5: Anthropic's brand-new flagship — the first Opus of the Claude 5 family, with a 1M-token context window. Benched via API the day it dropped; game tasks use our skill-infused AAA build prompts. MiMo-V2.6 Pro: Xiaomi's September 2026 open-weight flagship (MIT licence, 1.02T total / 42B active parameters). $0.435 per million input tokens and $0.87 per million output on OpenRouter, with cache hits at a fraction of a cent, which is roughly a quarter of Grok 4.7 and a twentieth of the closed frontier models it scores level with on agent benchmarks.
What's the context window for Claude Opus 5 vs MiMo-V2.6 Pro?
Claude Opus 5 has a 1,000,000 tokens context window. MiMo-V2.6 Pro has a 1,000,000 tokens context window.
When should I pick Claude Opus 5 over MiMo-V2.6 Pro?
Pick Claude Opus 5 for: Hardest agentic builds; Whole-repo reasoning; Frontier one-shots. The trade-off is the weaknesses we logged on the bench: Premium pricing ($5/$25 per M) — route the everyday 90% to cheaper lanes; Reasoning-by-default eats token budgets unless tuned per call.
When should I pick MiMo-V2.6 Pro over Claude Opus 5?
Pick MiMo-V2.6 Pro for: Simulations, shaders and visual scenes in one shot, at a fraction of frontier prices; High-volume agent work where an open, MIT-licensed model matters; Pair it with a self-fix loop for games: the failures are single broken tokens, not missing ideas. The trade-off is the weaknesses we logged on the bench: 18 of 50 builds scored under 5: long game files shipped with garbled tokens (a stray 'martin' or 'martial' identifier breaks the whole script), uninitialised references and bad canvas values, so the HUD paints but the 3D scene stays black; Two hard crashes: the RPG threw an engine fault on load and the solar system rendered nothing at all; It reasons for a long time at default effort: builds took 5 to 60 minutes each through OpenRouter.
How does Goldie Bench score Claude Opus 5 vs MiMo-V2.6 Pro?
Every demo on this page was built by Julian Goldie inside the Agent Operating System — same fixed prompt for both models, one shot, single HTML file out. Each result gets a 0–10 score on whether it ran, how close it hit the brief, and how good it looked. The highest score on each task gets gold; second gets silver; third gets bronze. See methodology for full provenance.
Related comparisons
Other head-to-heads using the same scoring system:
Claude Opus 5 vs Fusion MiMo-V2.6 Pro vs Fusion Claude Opus 5 vs Hermes MoA MiMo-V2.6 Pro vs Hermes MoA Claude Opus 5 vs GPT-5.6 Sol MiMo-V2.6 Pro vs GPT-5.6 Sol Claude Opus 5 vs Claude Fable 5 MiMo-V2.6 Pro vs Claude Fable 5Full model pages: Claude Opus 5 · MiMo-V2.6 Pro · back to the leaderboard
The same stack Julian uses
Run this stack yourself.
Every demo on this bench was built inside the Agent Operating System — one prompt, one shot, single HTML file out. The Agent OS, the prompts, the templates, the weekly walkthroughs and 4,000+ founders shipping with it every day all live inside the AI Profit Boardroom.
4,000+founders
258documented wins
38countries
$59/momonthly