Real head-to-head · same prompt, one shot
Claude Opus 5 vs Grok 4.7
The new Anthropic flagship — benched on all 45 one-shot builds the day it landed. vs Grok 4.6's price, a bigger base model, and it builds games that hold together.
Head-to-head verdict: Claude Opus 5 wins 7–4.
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 Grok 4.7, side by side, on 11 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.
Grok 4.7 · Wired into the Agent OS Grok Build tab (4.7 / 4.6 / 4.5 picker, OpenRouter fallback when the CLI is signed out) and benched on twenty skill-infused game builds, each played through its full gameplay arc on a Metal GPU before the vision judge scored the played frame.
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
Grok 4.7
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Where Claude Opus 5 beat Grok 4.7
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.
Voxelcraft
Game
Claude Opus 5 8.4
·
Grok 4.7 2.2
(+6.2)
· polished voxel sandbox
What I saw: Strong terrain generation with varied blocks, trees, and a genuine day/night cycle (screenshot shows night phase with dimmed lighting and 3 active mobs), plus a clean HUD, hotbar, and place/break/combat mechanics. Loses a hair for the visually murky dark-block artifact center-fra…
Crypt
Game
Claude Opus 5 8.4
·
Grok 4.7 2.3
(+6.1)
What I saw: Strong torch-lit crypt with a menacing skeleton enemy front-and-center, weapon in hand, full HUD (health/stamina/torch, minimap, kills/depth/foes) and atmospheric banner — clearly a combat-ready dungeon crawler. Held just short of the top by the heavy red damage-vignette washing …
Dogfight
Game
Claude Opus 5 8.4
·
Grok 4.7 6.3
(+2.1)
· polished flight sim
What I saw: Gorgeous low-poly jet, layered HUD, radar with 4 bogeys, gradient sky and terrain with pull-up warning all render cleanly and read as a real dogfight sim; slightly short of top since the screenshot shows enemies only as radar dots rather than visible in-air combat/tracers, and sc…
Gtadrive
Game
Claude Opus 5 8.4
·
Grok 4.7 7.8
(+0.6)
· polished neon driving
What I saw: Gorgeous cohesive art direction — detailed low-poly car with wheels/shadow, layered cityscape, refined HUD with integrity/velocity/wanted stars and a live minimap showing cop (red) and player markers plus traffic (purple car visible). Pursuit=2 and full control set (fire/steal/bo…
Doom
Game
Claude Opus 5 6.8
·
Grok 4.7 6.3
(+0.5)
What I saw: Strong polished HUD, textured raycaster walls, weapon viewmodel, and a detailed minimap show real engine work, plus counters imply combat (01/10 kills, 09 demons left). But the screenshot shows NO visible enemies on screen — combat can't be confirmed in the frame, so it reads clo…
Where Grok 4.7 beat Claude Opus 5
The tasks where I gave Grok 4.7 a higher 0–10 score on the same prompt — with the actual commentary from my source guides.
Arcade
Game
Grok 4.7 8.6
·
Claude Opus 5 6.5
(+2.1)
· 3D breakout polish
What I saw: A gorgeous 3D breakout with rich lighting, gradient sky dome, gridded arena, minimap, and a polished sci-fi HUD; playtest confirms real motion (walkPx 0.23) with hull/lives/score/bricks all changing and no console errors — clearly at or above the field's best.
Twilightvale
Game
Grok 4.7 8.3
·
Claude Opus 5 7.3
(+1.0)
What I saw: Renders a polished twilight open-world with terrain, water pool, scattered trees/monoliths, relics, minimap, and a functional combat loop — HUD shows score climbing, a relic collected, VITAL dropping from a WARDEN fight, all confirming real progression. Strong and shippable, but …
Dragonrealm
Game
Grok 4.7 8.6
·
Claude Opus 5 8.3
(+0.3)
· Frozen realm winner
What I saw: Gorgeous polished frozen scene — aurora sky, snowy hills, low-poly pines, standing stones, a caped character with sheathed sword, and a working HUD with compass/dragon counter; playtest shows real movement (walkPx 0.58), dragon-dive events, and a STRUCK combat state, hitting the …
Skyrim
Game
Grok 4.7 8.4
·
Claude Opus 5 8.2
(+0.2)
· snowy shrine explorer
What I saw: Renders a polished, atmospheric first-person Skyrim-lite with soft-shadowed low-poly pines, standing stones, held sword+shield, a working minimap, and a rich RPG HUD (health/stamina/shards/shrines/altitude). Playtest confirms real movement, altitude climbing, and HP dropping from…
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
Grok 4.7
Strengths
- Averaged 6.86/10 on the same twenty skill-infused game briefs where Grok 4.6 averaged 5.63, winning 8 of the 11 head-to-heads
- Best one-shots on this run: arcade (8.6), dragonrealm (8.6), flightsim (8.5), every one played on a real GPU before scoring
- Longer reinforcement learning shows: it holds a 40-50KB single-file spec and wires the controls it advertises
- xAI's own coding numbers moved: CursorBench 4.0 46.3% (from 40.4%) and DeepSWE v1.1 71.0% (from 65.2%)
Trade-offs
- 2 of 20 builds died on load or never moved when played — crypt: hud is not a function; voxelcraft: mesh.computeBoundingSphere is not a function file:///Users/j
- Independent Artificial Analysis Intelligence Index v4.3.2 puts it at 46, seven points behind Claude Fable 5.1 and GPT-6 at 53
- Terminal-Bench 4.0 is the weak spot xAI reports itself: 38.0% at launch
Pricing & context — the spec sheet
| Spec | Claude Opus 5 | Grok 4.7 |
|---|---|---|
| Vendor | Anthropic | xAI |
| Context window | 1,000,000 tokens | 500,000 tokens |
| Price | $5 / $25 per M | $2 in / $6 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. | xAI's September 2026 release, priced exactly like Grok 4.6: $2 per million input tokens and $6 per million output on the standard tier, $4 / $12 on the Fast tier (double the output speed). OpenRouter lists the same model at $1.60 / $4.80. |
| Release | 2026-07 | 2026-09 |
| Bench coverage | 50/50 scored · avg 8.27/10 | 11/11 scored · avg 6.86/10 |
The verdict — which should you pick?
Across 11 scored shared tasks, Claude Opus 5 averaged 8.00/10, beating Grok 4.7's 6.86/10 by 1.14 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 Grok 4.7 both into the Agent Operating System and dispatch each from the kanban by task type — hardest agentic builds → Claude Opus 5, one-shot arcade, driving and shooter builds where the whole game has to arrive in a single file → Grok 4.7. That's the same setup I run for the 4,000+ founders inside the AI Profit Boardroom.
FAQ — Claude Opus 5 vs Grok 4.7
Which is better, Claude Opus 5 or Grok 4.7?
On Goldie Bench, Claude Opus 5 averages 8.00/10 across the shared tasks, with 13 gold, 7 silver, 5 bronze overall. Grok 4.7 averages 6.86/10, with 0 gold, 1 silver, 2 bronze. Claude Opus 5 wins the head-to-head 7–4.
How much does Claude Opus 5 cost vs Grok 4.7?
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. Grok 4.7: xAI's September 2026 release, priced exactly like Grok 4.6: $2 per million input tokens and $6 per million output on the standard tier, $4 / $12 on the Fast tier (double the output speed). OpenRouter lists the same model at $1.60 / $4.80.
What's the context window for Claude Opus 5 vs Grok 4.7?
Claude Opus 5 has a 1,000,000 tokens context window. Grok 4.7 has a 500,000 tokens context window.
When should I pick Claude Opus 5 over Grok 4.7?
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 Grok 4.7 over Claude Opus 5?
Pick Grok 4.7 for: One-shot arcade, driving and shooter builds where the whole game has to arrive in a single file; High-volume agent work priced at half what the other frontier models charge; Grok Build inside the Agent OS: pick 4.7 in the tab and everything it writes lands in the workspace. The trade-off is the weaknesses we logged on the bench: 2 of 20 builds died on load or never moved when played — crypt: hud is not a function; voxelcraft: mesh.computeBoundingSphere is not a function file:///Users/j; Independent Artificial Analysis Intelligence Index v4.3.2 puts it at 46, seven points behind Claude Fable 5.1 and GPT-6 at 53; Terminal-Bench 4.0 is the weak spot xAI reports itself: 38.0% at launch.
How does Goldie Bench score Claude Opus 5 vs Grok 4.7?
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 Grok 4.7 vs Fusion Claude Opus 5 vs Hermes MoA Grok 4.7 vs Hermes MoA Claude Opus 5 vs GPT-5.6 Sol Grok 4.7 vs GPT-5.6 Sol Claude Opus 5 vs Claude Fable 5 Grok 4.7 vs Claude Fable 5Full model pages: Claude Opus 5 · Grok 4.7 · 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