All tasks / Comparisons

Gemini 4 Argon vs GPT-6 Astra

Compared only on public benchmark results, across the 5 tasks where both are listed: Gemini 4 Argon is a tier higher in 3 of 5 shared tasks, GPT-6 Astra in 1.

Gemini 4 Argon

Google's flagship Gemini reasoning model with a 1M-token context window, labeled stable in the Gemini API.

Vendor: Google
Weights: Closed: API and apps only
Released: 13 Oct 2026
API price: $2 in / $10 out per 1M tokens
License: proprietary
Last verified: 18 Oct 2026

Alternatives to Gemini 4 Argon

GPT-6 Astra

OpenAI's most capable GPT tier, introduced with GPT-6, aimed at complex reasoning and coding.

Vendor: OpenAI
Weights: Closed: API and apps only
Released: 3 Sep 2026
API price: $10 in / $50 out per 1M tokens
License: proprietary
Last verified: 18 Oct 2026

Alternatives to GPT-6 Astra

Task by task

Task	Gemini 4 Argon	GPT-6 Astra	Higher tier
Chat & assistants Models	S1,524 on LMArena Text Arena (overall, style control) · Cloud	A1,477 on LMArena Text Arena (overall, style control) · Cloud	Gemini 4 Argon
Writing Models	S1,516 on LMArena Text Arena: Creative Writing (style control) · Cloud	A1,450 on LMArena Text Arena: Creative Writing (style control) · Cloud	Gemini 4 Argon
Coding Models	B1,678 on LMArena WebDev / Code Arena (overall) · Cloud	S1,776 on LMArena WebDev / Code Arena (overall) · Cloud	GPT-6 Astra
Browser & computer agents Models	–No public result yet · Cloud	–No public result yet · Cloud	—
Workflow automation Models	S77.5% on AutomationBench-AA (Artificial Analysis) · Cloud	A68.5% on AutomationBench-AA (Artificial Analysis) · Cloud	Gemini 4 Argon

A tier spans a range of scores, and small gaps on a leaderboard are often within its margin of error, so only a different tier counts as ahead. How we rank.

Same benchmark, both results

Benchmark	Gemini 4 Argon	GPT-6 Astra	Snapshot
Artificial Analysis Intelligence Index Composite index over Artificial Analysis' own evaluation suite, higher is better	53 Gemini 4 Argon (High)	53 GPT-6 Astra (Max)	18 Oct 2026
AutomationBench-AA (Artificial Analysis) Score: average share of each task's objectives completed across 657 business-workflow tasks in 40 simulated SaaS apps via REST APIs; a task with any guardrail (business-rule) violation scores zero, higher is better	77.5% Gemini 4 Argon (High)	68.5% GPT-6 Astra (Max)	19 Oct 2026
LMArena Text Arena (overall, style control) Arena score (Bradley-Terry rating from pairwise human votes, style-controlled default view), higher is better	1,524 Gemini 4 Argon (High)	1,477 gpt-6-astra-max	15 Oct 2026
LMArena Text Arena: Creative Writing (style control) Arena score (Bradley-Terry rating from pairwise human votes, creative-writing prompts only, style-controlled view), higher is better	1,516 Gemini 4 Argon (High)	1,450 gpt-6-astra-max	15 Oct 2026
LMArena WebDev / Code Arena (overall) Arena score (Bradley-Terry rating from pairwise human votes on web-app generation), higher is better	1,678 Gemini 4 Argon (High)	1,776 GPT-6 Astra (Max)	18 Oct 2026
SWE-Bench Pro V2 (public set, full) Resolve rate on 642 validated long-horizon tasks from 11 copyleft repositories, re-graded on a pristine image under a locked offline protocol, higher is better	99.2% Gemini 4 Argon (mini-swe-agent) high	96.9% GPT-6-Astra (Codex) high	19 Oct 2026