claude-opus-4-6 vs grok-4
Side-by-side comparison of claude-opus-4-6 and grok-4 — benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. claude-opus-4-6 and grok-4 trade wins evenly across shared benchmarks.
claude-opus-4-6
Input / 1M
$5.00
Output / 1M
$25.00
Context
1M
Model ID
anthropic/claude-opus-4-6
xAI Corp.
grok-4
Input / 1M
$3.00
Output / 1M
$15.00
Context
256K
Model ID
xai/grok-4
Benchmark comparison
MMLU Proknowledge
claude-opus-4-687.8%
grok-487.5%
GPQA Diamondreasoning
claude-opus-4-681.2%
grok-487.5%
HumanEvalcoding
claude-opus-4-694.1%
grok-493.8%
SWE-Bench Verifiedcoding
claude-opus-4-674.5%
grok-472.5%
MATHmath
claude-opus-4-693.2%
grok-494.1%
AIME 2024math
claude-opus-4-687.3%
grok-490.1%
MMMUmultimodal
claude-opus-4-678.2%
grok-477.9%
LiveBenchreasoning
claude-opus-4-673.4%
grok-475.4%
τ-bench Retailagentic
claude-opus-4-671.2%
grok-4—
Scores sourced from official model cards, Artificial Analysis, and public leaderboards. Benchmarks measure specific skills and don't capture every aspect of model quality.
Pricing & specifications
| claude-opus-4-6 | grok-4 | |
|---|---|---|
| Input price / 1M | $5.00 | $3.00 |
| Output price / 1M | $25.00 | $15.00 |
| Context window | 1M tokens | 256K tokens |
| Max output | 128K tokens | — |
| Vision input | Yes | Yes |
| Tool calling | Yes | Yes |
| Reasoning | Yes | — |
| Prompt caching | Yes | Yes |
| Computer use | Yes | Yes |
| Provider | Anthropic PBC | xAI Corp. |
Questions people ask
Is claude-opus-4-6 better than grok-4?
claude-opus-4-6 and grok-4 trade wins evenly across shared benchmarks. See the benchmark comparison above for specifics — claude-opus-4-6 and grok-4 have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper — claude-opus-4-6 or grok-4?
grok-4 is cheaper. claude-opus-4-6 costs $5.00/$25.00 per 1M input/output tokens, while grok-4 costs $3.00/$15.00.
Can I use claude-opus-4-6 and grok-4 through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch — "anthropic/claude-opus-4-6" or "xai/grok-4" — no other code changes needed.
What are the context windows?
claude-opus-4-6 supports up to 1M tokens of context. grok-4 supports up to 256K tokens. Longer context means you can feed larger documents or codebases in a single prompt, though quality often degrades past 128K for most models.
Switch between claude-opus-4-6 and grok-4 with one line of code
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