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Compare performance benchmarks, coding intelligence, reasoning evaluations, context limits, and API economics between Gemini 4 Argon (Google DeepMind) and Kimi K3.1 Pro (Moonshot AI).
| Metric / Capability | Gemini 4 Argon | Kimi K3.1 Pro |
|---|---|---|
| Developer / Organization | Google DeepMind | Moonshot AI |
| Release Date | 2026-10-13 | 2026-10-23 |
| Deployment / Weights | Proprietary Cloud API | Proprietary Cloud API |
| Context Window | 1.0M tokens (1,048,576 tokens) | 1.0M tokens (1,048,576 tokens) |
| Input Pricing (/1M Tokens) | $2 | $2 |
| Output Pricing (/1M Tokens) | $10 | $10 |
| Benchmark / Domain | Gemini 4 Argon | Kimi K3.1 Pro | Advantage |
|---|---|---|---|
Artificial Analysis Intelligence Index Composite index aggregating 10+ evaluations of general reasoning and knowledge. | 52.6% | 55.1% | Kimi K3.1 Pro (+5%) |
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% | — | — |
Terminal-Bench 4.0 Sandboxed command-line tasks requiring shell and file-system operation. | 57.4% | 65.7% | Kimi K3.1 Pro (+14%) |
ARC-AGI-2 Novel visual grid puzzles requiring abstract rule induction. | 91.3% | — | — |
GPQA Diamond Graduate-level physics, chemistry, and biology questions written by domain experts. | — | 94.2% | — |
Humanity's Last Exam Expert-written questions across hundreds of disciplines designed to resist saturation. | — | 51.1% | — |
FrontierMath v2 (Tiers 1-3) Unpublished, research-level mathematics problems across Tiers 1-3. | 86.0% | — | — |
Design Arena ELO Human-preference ELO across UI, 3D, data-visualization, and game-dev generations. | 1438 | 1448 | Kimi K3.1 Pro (+1%) |
Kimi K3.1 Pro outperforms Gemini 4 Argon across 3 evaluated benchmarks compared to 0 for Gemini 4 Argon, excelling in Artificial Analysis Intelligence Index, Terminal-Bench 4.0, Design Arena ELO.
Both models feature equivalent context windows of 1.0M tokens (1,048,576 tokens).
Both models have comparable pricing structures or open weight deployment options.
Gemini 4 Argon is a proprietary cloud API. Kimi K3.1 Pro is a proprietary cloud API.
Analyze 130+ models side-by-side using interactive radar charts, cost-efficiency quadrant plots, and live dataset filters on the full NeuBench index.
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