Compare / Gemini 4 Argon vs GPT-6.1 Sol
Gemini 4 Argon vs GPT-6.1 Sol
Which is cheaper, which is more capable, and which does better at each kind of work, from 16 results on 2 sources that measured both models.
Results as of 8 October 2026 (catalogue release 2026-10-08-4199ce0620fe).
Gemini 4 Argon or GPT-6.1 Sol? The short answer
They score and cost about the same: pick on the results below that match your work.
- They score about the same on the Artificial Analysis Intelligence Index (52.6 and 51.8).
- Gemini 4 Argon is newer: released 30 Sep 2026, against 29 Sep 2026 for GPT-6.1 Sol.
- On third-party benchmarks, on the results both models have: Gemini 4 Argon does better for agents and tool use, reasoning and knowledge, writing and sticking to the facts.
At a glance
| Gemini 4 Argon | GPT-6.1 Sol | |
|---|---|---|
| Price per million tokens | Not on sale | $2.00 in · $10.00 out |
| Blended (3 in : 1 out) | – | $4.00 |
| Cheapest host, blended | – | $4.00 (Azure) |
| Cached input, per million | – | $0.10 cached input |
| Intelligence Index | 52.6 | 51.8 |
| Spring Prompt overall | – | 81 |
| Output speed, tokens a second | – | 55 |
| Context window | – | 1,050,000 tokens |
| Released | 30 Sep 2026 (newer) | 29 Sep 2026 |
| Weights | Closed | Closed |
| Developer based in | the US | the US |
Prices are the developer's list price where we have read it, otherwise the typical host on OpenRouter; see every model's price. Intelligence and speed from Artificial Analysis.
Which is better for what
Each model's rank among models available today, for each kind of work, from our own benchmarks and licensed sources. The better rank is in green.
| Use case | Gemini 4 Argon | GPT-6.1 Sol |
|---|---|---|
| Product listingsTurning a sparse product feed and photos into listings that can go live | not measured | 2 of 20 |
| Decks from an analysisTurning a finished analysis into a deck you could present as it is | not measured | 3 of 19 |
| User surveysPlanning a user survey and reading its results without being misled | not measured | 1 of 8 |
| Agents and tool useMulti-step tasks with tools: support desks, coding agents, function calls | 3 of 165 | 3 of 164 |
| Professional workReal tasks from banking, consulting and law, business documents and freelance projects | not measured | 9 of 51 |
| Reasoning and knowledgeHard questions across science, maths and general knowledge | 3 of 199 | 5 of 198 |
| WritingWhat people prefer in blind comparisons, and judged writing quality | 1 of 189 | 15 of 188 |
| Sticking to the factsSummarising without inventing things, and factual answers | 1 of 153 | 18 of 152 |
Every shared result
Each model's best result on every measure both have, grouped by benchmark, with the setting that produced it. The headline measures of each benchmark come first; the rest are under "Show all". Green marks the better value; where a source reports ranges that overlap, neither is marked.
| Measure | Gemini 4 Argon | GPT-6.1 Sol |
|---|---|---|
| Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results | ||
| Overall · TextArena rating, higher is better | 1,525high reasoning | 1,483max reasoning |
| Overall · Text factualityArena rating, higher is better | 1,511high reasoning | 1,463max reasoning |
| Business, management and finance · TextArena rating, higher is better | 1,522high reasoning | 1,475max reasoning |
| Artificial Analysis reported by Artificial Analysis · 3 results | ||
| Artificial Analysis Intelligence Indexindex score, higher is better | 52.6high reasoning | 51.8max reasoning |
| Humanity's Last Exam% of questions, higher is better | 57.1%high reasoning | 52.9%max reasoning |
| Terminal-Bench 4.0% of tasks, higher is better | 57.1%high reasoning | 56.1%max reasoning |
Show all 16 results (10 more)
| Measure | Gemini 4 Argon | GPT-6.1 Sol |
|---|---|---|
| Arena (formerly LMArena) reported by Arena (formerly LMArena) · 8 results | ||
| Confirmed task success · AgentIPS effect estimate, higher is better | 0.15high reasoning, arena agent | 0.15max reasoning, arena agent |
| Creative writing · TextArena rating, higher is better | 1,519high reasoning | 1,460max reasoning |
| Expert prompts · TextArena rating, higher is better | 1,539high reasoning | 1,543max reasoning |
| Instruction following · TextArena rating, higher is better | 1,528high reasoning | 1,490max reasoning |
| Praise over complaint · AgentIPS effect estimate, higher is better | 0.28high reasoning, arena agent | 0.26max reasoning, arena agent |
| Steerability · AgentIPS effect estimate, higher is better | 0.13high reasoning, arena agent | 0.11max reasoning, arena agent |
| Tool grounding · AgentIPS effect estimate, higher is better | 0.00high reasoning, arena agent | 0.00max reasoning, arena agent |
| Writing, literature and language · TextArena rating, higher is better | 1,522high reasoning | 1,472max reasoning |
| Artificial Analysis reported by Artificial Analysis · 2 results | ||
| Long-context reasoning (AA-LCR)% of questions, higher is better | 79.7%high reasoning | 84.0%low reasoning |
| SciCode% of problems, higher is better | 61.8%high reasoning | 55.8%high reasoning |
Quick answers
Is Gemini 4 Argon better than GPT-6.1 Sol?
They score and cost about the same: pick on the results below that match your work.
Run Gemini 4 Argon and GPT-6.1 Sol on your own prompt
Benchmarks aren't your data. Try both side by side in the playground, with the cost of every answer.