Grok 4 wins on price ($2 vs $5/1M input) and context window (2M vs 1M). Claude Opus 4.6 wins on coding (99 vs 92) and writing quality. For most workflows, Grok 4 is the stronger default — strong coding value with 2m context — an underrated pick at this price.
The safest Grok 4 vs Claude Opus 4.6 default, the cheaper option worth trying first, and the specialist pick — before you read the detail below.
Grok 4 is the strongest answer here for Grok 4 vs Claude Opus 4.6 — pick it when quality of output matters more than the $2.00/1M/1M input you pay for it.
GPT-5.1-Codex-Max is the cheaper way in for Grok 4 vs Claude Opus 4.6, at $1.25/1M/1M input against Grok 4's $2.00/1M/1M.
Claude Opus 4.6 is the fastest of these for Grok 4 vs Claude Opus 4.6 — 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 99 vs 92 for Grok 4.
Grok 4 has the larger context window: 2M vs 1M for Claude Opus 4.6.
Grok 4 is cheaper at $2/1M input tokens vs $5/1M for Claude Opus 4.6.
Grok 4 is the safer default: it is built for coding and research at competitive pricing with maximum context, which covers most of what people bring to this comparison.
Claude Opus 4.6 earns its place when your work is mostly agentic coding and complex multi-step reasoning, even though it loses the overall count here.
Both models serve different primary workflows — Grok 4 for coding and research at competitive pricing with maximum context, Claude Opus 4.6 for agentic coding and complex multi-step reasoning — so running each where it has a clear edge often beats forcing one to do both.
Switch the scoring lens to see whether the Grok 4 vs Claude Opus 4.6 answer changes when cost, speed, or long-document depth leads the decision.
Anthropic / Premium / Sep 3, 2026
Previous Opus flagship, now superseded by Claude Opus 4.7.
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 Grok 4 vs Claude Opus 4.6 recommendation shifts once you weigh price or latency differently.
Strong coding value with 2M context — an underrated pick at this price.
Previous Opus flagship, now superseded by Claude Opus 4.7.
List prices and published scores — the numbers this page's pick is built from.
| Model | Input | Output | Est. month | Context | Speed | Coding | Writing | Research |
|---|---|---|---|---|---|---|---|---|
| Grok 4xAI | $2.00/1M | $6.00/1M | $32 | 2M tokens | Fast | 92 | 70 | 86 |
| Claude Opus 4.6Anthropic | $5.00/1M | $25.00/1M | $100 | 1M tokens | Deliberate | 99 | 94 | 96 |
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 Grok 4 vs Claude Opus 4.6, what it is genuinely good at, and where we would steer you away from it.
The default answer for Grok 4 vs Claude Opus 4.6 — 92/100 on the coding axis, and the model we would start with unless the price below rules it out.
xAI's latest flagship with strong coding benchmark performance, a 2M token context window, and aggressive pricing at $2/$6 per million tokens.
You need the highest writing quality or the most reliable production-grade output — Claude wins both.
Strong coding benchmark with excellent value. The $2/$6 pricing and 2M context make it competitive with more expensive alternatives.
Full pricing, benchmark table and release notes on the Grok 4 page.
Here for latency: it answers fastest of anything listed for Grok 4 vs Claude Opus 4.6, at 99/100 on coding.
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.
Still strong for high-stakes engineering work, but Opus 4.7 is the newer premium coding leader. For most teams, Sonnet 4.6 remains the smarter lower-cost default.
Full pricing, benchmark table and release notes on the Claude Opus 4.6 page.
UseRightAI recommendations are based on practical decision factors people actually feel in day-to-day use.
Newsletter
We email when the Grok 4 vs Claude Opus 4.6 pick changes, when one of these models moves on price, or when something new displaces the current leader.
No spam. Useful updates only. Affiliate disclosures always clearly labeled.
Grok 4 wins on more of the categories we score — coding, research, reasoning — so it is the better default of the two. Claude Opus 4.6 is the better pick when your work is mostly agentic coding and complex multi-step reasoning. Neither is universally "better": Grok 4 is aimed at coding and research at competitive pricing with maximum context, Claude Opus 4.6 at agentic coding and complex multi-step reasoning.
Grok 4 is cheaper at $2/1M input and $6/1M output. Claude Opus 4.6 costs $5/1M input and $25/1M output.
Grok 4 has the larger context window at 2M tokens vs Claude Opus 4.6's 1M. For large document analysis, Grok 4 is the stronger pick.
Claude Opus 4.6 is better for coding with a score of 99 vs Grok 4's 92 (out of 100). GPT-6 Astra is the overall coding leader in this directory at 100/100.
Grok 4 is faster with a fast speed rating (score: 4) 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.
Claude Opus 4.6 and Sonnet 4.6 lead on pure coding benchmarks. Less established ecosystem and tooling than OpenAI or Anthropic. Avoid it if you need the highest writing quality or the most reliable production-grade output — Claude wins both. That is the main case for looking at Claude Opus 4.6 instead.
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 want the current premium coding leader, need lower cost, or are starting a new integration. Against Grok 4 specifically, the gap shows up most on coding (92 vs 99).
Take a moderate workload of 10M input and 2M output tokens a month. Grok 4 runs $32.00 (at $2/1M in and $6/1M out); Claude Opus 4.6 runs $100.00 (at $5/1M in and $25/1M out). That is a $68.00/month difference — Grok 4 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 Grok 4 for coding and research at competitive pricing with maximum context, with Claude Opus 4.6 handling agentic coding and complex multi-step reasoning. Since Grok 4 is both the stronger and the cheaper option here, a split mainly makes sense if Claude Opus 4.6 covers a capability you specifically need.