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Compare performance benchmarks, coding intelligence, reasoning evaluations, context limits, and API economics between Gemini 4 Argon (Google DeepMind) and Claude Opus 5.5 (Anthropic).
| Metric / Capability | Gemini 4 Argon | Claude Opus 5.5 |
|---|---|---|
| Developer / Organization | Google DeepMind | Anthropic |
| Release Date | 2026-10-13 | 2026-09-22 |
| Deployment / Weights | Proprietary Cloud API | Proprietary Cloud API |
| Context Window | 1.0M tokens (1,048,576 tokens) | 1M tokens (1,000,000 tokens) |
| Input Pricing (/1M Tokens) | $2 | $4 |
| Output Pricing (/1M Tokens) | $10 | $20 |
| Benchmark / Domain | Gemini 4 Argon | Claude Opus 5.5 | Advantage |
|---|---|---|---|
Artificial Analysis Intelligence Index Composite index aggregating 10+ evaluations of general reasoning and knowledge. | 52.6% | 57.6% | Claude Opus 5.5 (+10%) |
Artificial Analysis Coding Agent Index v2.0 Composite index of coding-agent systems (model + harness) across FrontierCode v1.1, SWE-Atlas-QnA, and Terminal-Bench v4. | 53.2% | 61.7% | Claude Opus 5.5 (+16%) |
SWE-bench Pro Harder, contamination-resistant successor to SWE-bench spanning multiple languages. | — | 89.9% | — |
Terminal-Bench 4.0 Sandboxed command-line tasks requiring shell and file-system operation. | 57.4% | 66.4% | Claude Opus 5.5 (+16%) |
ARC-AGI-2 Novel visual grid puzzles requiring abstract rule induction. | 91.3% | 91.7% | Claude Opus 5.5 leads |
Humanity's Last Exam Expert-written questions across hundreds of disciplines designed to resist saturation. | — | 64.4% | — |
FrontierMath v2 (Tiers 1-3) Unpublished, research-level mathematics problems across Tiers 1-3. | 86.0% | 91.2% | Claude Opus 5.5 (+6%) |
Design Arena ELO Human-preference ELO across UI, 3D, data-visualization, and game-dev generations. | 1438 | 1468 | Claude Opus 5.5 (+2%) |
Claude Opus 5.5 outperforms Gemini 4 Argon across 6 evaluated benchmarks compared to 0 for Gemini 4 Argon, excelling in Artificial Analysis Intelligence Index, Artificial Analysis Coding Agent Index v2.0, Terminal-Bench 4.0.
Gemini 4 Argon offers a larger context capacity of 1.0M tokens (1,048,576 tokens), compared to 1M tokens for Claude Opus 5.5.
Gemini 4 Argon is more cost-effective. Input tokens cost $2/M tokens vs $4/M tokens for Claude Opus 5.5.
Gemini 4 Argon is a proprietary cloud API. Claude Opus 5.5 is a proprietary cloud API.
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