Claude Opus 4.6 wins on coding (95 vs 80) and writing quality. Gemini 3.1 Pro wins on price ($2 vs $5/1M input). For most workflows, Claude Opus 4.6 is the stronger default — earlier opus flagship — the current opus is claude opus 5.5.
The safest Claude Opus 4.6 vs Gemini 3.1 Pro default, the cheaper option worth trying first, and the specialist pick — before you read the detail below.
Claude Opus 4.6 is the strongest answer here for Claude Opus 4.6 vs Gemini 3.1 Pro — pick it when quality of output matters more than the $5.00/1M/1M input you pay for it.
Gemini 3.1 Pro handles the same job for about 53% less per token. Start here and only move up if the output is not good enough.
Gemini 3.1 Pro is the fastest of these for Claude Opus 4.6 vs Gemini 3.1 Pro — worth it when latency is what the reader notices, not the last few points of reasoning depth.
Claude Opus 4.6 leads on coding with a score of 95 vs 80 for Gemini 3.1 Pro.
Gemini 3.1 Pro is cheaper at $2/1M input tokens vs $5/1M for Claude Opus 4.6.
Claude Opus 4.6 is the stronger default for coding tasks.
Go with Claude Opus 4.6 if you want one model to handle coding and research — it targets agentic coding, complex multi-step reasoning, and deep research.
Choose Gemini 3.1 Pro when your work is mostly research and deep document analysis — that is the workload it was tuned for.
Gemini 3.1 Pro is the more cost-efficient option at $2/1M input — Claude Opus 4.6 costs 3x more per input token, so the gap is worth taking seriously wherever token volume rather than peak quality drives the bill.
Switch the scoring lens to see whether the Claude Opus 4.6 vs Gemini 3.1 Pro answer changes when cost, speed, or long-document depth leads the decision.
Anthropic / Premium / Mar 24, 2026
Earlier Opus flagship — the current Opus is Claude Opus 5.5.
Ranks models by the broadest mix of coding, writing, research, and long-context usefulness.
You want the current premium coding leader, need lower cost, or are starting a new integration.
Where the Claude Opus 4.6 vs Gemini 3.1 Pro recommendation shifts once you weigh price or latency differently.
Earlier Opus flagship — the current Opus is Claude Opus 5.5.
Google's Pro model — 1M context and native multimodal input at $2/$12.
List prices and published scores — the numbers this page's pick is built from.
| Model | Input | Output | Est. month | Context | Speed | Coding | Writing | Research |
|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.6Anthropic | $5.00/1M | $25.00/1M | $100 | 1M tokens | Deliberate | 95 | 94 | 96 |
| Gemini 3.1 ProGoogle | $2.00/1M | $12.00/1M | $44 | 1M tokens | Balanced | 80 | 82 | 94 |
Scores out of 100 — how we evaluate models. “Est. month” is 10M in / 2M out at list price: a ceiling, no discounts.
Why each one is on the shortlist for Claude Opus 4.6 vs Gemini 3.1 Pro, what it is genuinely good at, and where we would steer you away from it.
The default answer for Claude Opus 4.6 vs Gemini 3.1 Pro — 95/100 on the coding axis, and the model we would start with unless the price below rules it out.
Anthropic's previous Opus flagship for high-stakes coding, reasoning, and deep research before Opus 4.7.
You want the current premium coding leader, need lower cost, or are starting a new integration.
Superseded several times over — by Opus 4.7, 4.8, 5 and now Opus 5.5. Still capable for pinned integrations, but new work should use Claude Opus 5.5 or the cheaper Sonnet 5.5.
Full pricing, benchmark table and release notes on the Claude Opus 4.6 page.
Where most budgets should land for Claude Opus 4.6 vs Gemini 3.1 Pro — about 53% less per token than Claude Opus 4.6, and still 80/100 on the coding axis.
Google's Pro-tier Gemini 3 model, released in preview on February 19, 2026, with a 1M-token context window, Deep Think reasoning and $2/$12 pricing.
Your primary use case is writing quality or agentic coding — Claude wins both.
A capable research model and still Google's current Pro tier, but no longer the long-context leader: its 1M-token window matches Claude Opus 5.5 and is slightly below the GPT-6 family's 1.05M. Choose it for Google Workspace integration and multimodal input; for most research, Claude Opus 5.5 or GPT-6.1 Sol are stronger at a similar price.
Full pricing, benchmark table and release notes on the Gemini 3.1 Pro page.
UseRightAI recommendations are based on practical decision factors people actually feel in day-to-day use.
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Claude Opus 4.6 wins on more of the categories we score — coding, research, long context — so it is the better default of the two. Gemini 3.1 Pro is the better pick when your work is mostly research and deep document analysis. Neither is universally "better": Claude Opus 4.6 is aimed at agentic coding and complex multi-step reasoning, Gemini 3.1 Pro at research and deep document analysis.
Gemini 3.1 Pro is cheaper at $2/1M input and $12/1M output. Claude Opus 4.6 costs $5/1M input and $25/1M output.
Both Claude Opus 4.6 and Gemini 3.1 Pro have the same 1M context window.
Claude Opus 4.6 is better for coding with a score of 95 vs Gemini 3.1 Pro's 80 (out of 100). Claude Opus 5.5 is the overall coding leader in this directory at 100/100.
Gemini 3.1 Pro is faster with a balanced speed rating (score: 3) vs Claude Opus 4.6's deliberate rating (score: 2). Speed matters most for interactive and high-throughput work; for batch jobs the Claude Opus 4.6 latency penalty is usually invisible.
Premium pricing ($15/$75) makes it expensive for high-volume usage. Sonnet 4.6 is only 1.2 points behind on SWE-bench at 5× lower cost. Avoid it if you are starting a new integration — Claude Opus 5.5 is stronger and cheaper. That is the main case for looking at Gemini 3.1 Pro instead.
Slower than Flash for everyday lightweight tasks. Claude Sonnet 5.5 is better for writing quality, at a lower $2/$10. Avoid it if your primary use case is writing quality or agentic coding — Claude wins both. Against Claude Opus 4.6 specifically, the gap shows up most on coding (95 vs 80).
Take a moderate workload of 10M input and 2M output tokens a month. Claude Opus 4.6 runs $100.00 (at $5/1M in and $25/1M out); Gemini 3.1 Pro runs $44.00 (at $2/1M in and $12/1M out). That is a $56.00/month difference — Gemini 3.1 Pro is the cheaper of the two at this volume, and the gap scales linearly as you send more. Output tokens dominate the bill on both, so prompt length matters far less than response length.
Yes, and for most teams that beats picking one. A common split is Claude Opus 4.6 for agentic coding and complex multi-step reasoning, with Gemini 3.1 Pro handling research and deep document analysis. Routing high-volume, low-stakes calls to Gemini 3.1 Pro at $2/1M and reserving Claude Opus 4.6 for the hard cases is usually the cheapest arrangement that does not cost you quality.