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HEAD TO HEAD · UPDATED NOV 6, 2026
Gemini 4 Argon vs GPT-6.1 Sol
Google DeepMind against OpenAI, on sourced numbers only. Green marks the higher (or cheaper) value on each row; the text below only calls a lead when the gap is bigger than measurement noise.
| Gemini 4 Argon | GPT-6.1 Sol | |
|---|---|---|
| Arena Elo | 1520 source ↗ | 1481 source ↗ |
| GPQA Diamond | 96.4% source ↗ | not published |
| $ per 1M in / out | $2 / $10 source ↗ | $2 / $10 source ↗ |
| Blended $ per 1M (3:1) | $4.00 source ↗ | $4.00 source ↗ |
| Context window | 1M source ↗ | 1.05M source ↗ |
| Output speed | 74 tok/s source ↗ | not published |
| Released | Oct 13, 2026 source ↗ | Sep 29, 2026 source ↗ |
| Open weights | No source ↗ | No source ↗ |
| Reasoning effort tiers | low · medium · high (default: medium) | low · medium · high · xhigh · max (default: medium) |
| API effort control | thinking_config={"thinking_level": "low" | "medium" | "high"} source ↗ | reasoning={"effort": "low" | "medium" | "high" | "xhigh" | "max"} source ↗ |
| Additional benchmarks | DeepSWE v1.1: 77.9% source ↗ AA Intelligence Index v5.0.1: 50 (High) source ↗ | AA Intelligence Index v5.0.1: 55 (Max) source ↗ |
| Best for (workload) | Highest GPQA Diamond score we track (96.4%, Epoch AI) and the top Arena Text score among models you can use today (1520). source ↗ | OpenAI's near-Astra model at one-fifth of Astra's token price, with a 1.05M-token context window. source ↗ |
Arena Elo from the arena.ai text leaderboard as of Oct 27, 2026 source ↗. Speed measured by Artificial Analysis and varies by provider.
Which one should I use?
For overall answer quality as rated by people in blind tests, Gemini 4 Argon leads clearly (1520 vs 1481 Arena Elo). On release timing, Google DeepMind is at day 24 of a typical ~32-day gap (MID-CYCLE), and OpenAI is at day 11 of a typical ~23-day gap (ADOPT NOW · FRESH RELEASE).
Key differences from the sourced numbers
- They cost about the same: $4.00 vs $4.00 per 1M tokens at a 3:1 mix.
- Gemini 4 Argon scores 39 Elo points higher (1520 vs 1481) on the Arena text leaderboard, where people vote on blind side-by-side answers.
- Gemini 4 Argon pricing note: Introductory price until Nov 30, 2026; $4 / $20 from Dec 1. No higher rate for long prompts.
- GPT-6.1 Sol pricing note: Prompts up to 272K tokens; $4 / $15 above 272K. OpenAI describes Sol as near-Astra at lower cost.
Frequently asked questions
Is Gemini 4 Argon or GPT-6.1 Sol better?
They cost about the same: $4.00 vs $4.00 per 1M tokens at a 3:1 mix. Gemini 4 Argon scores 39 Elo points higher (1520 vs 1481) on the Arena text leaderboard, where people vote on blind side-by-side answers. Gemini 4 Argon pricing note: Introductory price until Nov 30, 2026; $4 / $20 from Dec 1. No higher rate for long prompts. GPT-6.1 Sol pricing note: Prompts up to 272K tokens; $4 / $15 above 272K. OpenAI describes Sol as near-Astra at lower cost.
Which one should I use: Gemini 4 Argon or GPT-6.1 Sol?
For overall answer quality as rated by people in blind tests, Gemini 4 Argon leads clearly (1520 vs 1481 Arena Elo). On release timing, Google DeepMind is at day 24 of a typical ~32-day gap (MID-CYCLE), and OpenAI is at day 11 of a typical ~23-day gap (ADOPT NOW · FRESH RELEASE).
How much does Gemini 4 Argon cost compared with GPT-6.1 Sol?
Gemini 4 Argon lists at $2 / $10 per 1M input/output tokens ($4.00/1M blended at 3:1). GPT-6.1 Sol lists at $2 / $10 per 1M input/output tokens ($4.00/1M blended at 3:1).
Facts checked Nov 5, 2026 against official sources. Every number links to its source. Spotted an error? Email [email protected].