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Every score has a dated snapshot.

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  2. Comparisons
  3. Claude Sonnet 4 vs Grok 4

Pairwise benchmark snapshot · Aug 1, 2026

Claude Sonnet 4 vs Grok 4 benchmark

In this head-to-head showdown, Grok 4 delivers higher overall intelligence and human-preferred responses (Elo 1,488 vs 1,455), while Claude Sonnet 4 leads in SWE-bench software engineering benchmarks (62.8%), while Claude Sonnet 4 is more budget-friendly at $15/1M per 1M output tokens, while Grok 4 provides faster response streaming (98 tok/s). Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose Grok 4 if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Claude Sonnet 4 if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
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Verified Head-to-Head Advantage Breakdown

7 direct benchmark disciplines evaluated across capability, speed, and cost

Claude Sonnet 4 (2)Grok 4 (5)
Claude Sonnet 4
2 of 7 Wins
✓SWE-bench✓Time to first token
Grok 4
5 of 7 Wins
✓Preference Elo✓LiveBench✓GPQA Diamond✓Output speed✓Context window
Anthropic
Leads 2 of 7 metrics
Claude Sonnet 4

First Sonnet 4 generation. Bridge between 3.5/3.7 and Sonnet 5.

Elo 1,455$15/1M out
xAI
Leads 5 of 7 metrics
Grok 4

Previous xAI flagship.

Grok 4.0Elo 1,488$15/1M out
Top Rival Showdowns for Claude Sonnet 4
All Matchups
Compare vs:vs GPT-5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference LeaderGrok 4 Wins

Grok 4

Δ 33 Arena Elo pts

Throughput LeaderGrok 4 Wins

Grok 4

98 tok/s

Value per Dollar LeaderClaude Sonnet 4 Wins

Claude Sonnet 4

$15 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
Percentile 0–100
Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Claude Sonnet 4 (3)vsGrok 4 (5)
Claude Sonnet 4: 3W (38%)Overall: Grok 4Grok 4: 5W (62%)
← Claude Sonnet 42 tiesGrok 4 →
🏆Grok 4(3/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark
Claude Sonnet 4vsGrok 4
Preference Elo
1,455vs1,488+33
Coding Elo
1,468vs—
SWE-bench
62.8%vs58.6%+4.2%
LiveBench
63.2%vs64.1%+0.9%
GPQA Diamond
76.4%vs79%+2.6%
Claude Sonnet 4: 2WGrok 4: 3W
Tied (1-1)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Claude Sonnet 4vsGrok 4
Output speed
92 tok/svs98 tok/s+6 tok/s
Time to first token
220 msvs230 ms+10 ms
Claude Sonnet 4: 1WGrok 4: 1W
🏆Grok 4(1/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Claude Sonnet 4vsGrok 4
Output price
$15/1Mvs$15/1M
Input price
$3/1Mvs$3/1M
Context window
200kvs256k+56k
Claude Sonnet 4: 0WGrok 4: 1W

Side-by-Side Benchmark Matrix

Preference Elo+33
Claude Sonnet 41,455
seed-bootstrap · Aug 1, 2026
Grok 41,488
seed-bootstrap · Aug 1, 2026
Coding Elo
Claude Sonnet 41,468
seed-bootstrap · Aug 1, 2026
Grok 4—
LiveBench+0.9%
Claude Sonnet 463.2%
seed-bootstrap · Aug 1, 2026
Grok 464.1%
seed-bootstrap · Aug 1, 2026
SWE-bench+4.2%
Claude Sonnet 462.8%
seed-bootstrap · Aug 1, 2026
Grok 458.6%
seed-bootstrap · Aug 1, 2026
GPQA Diamond+2.6%
Claude Sonnet 476.4%
seed-bootstrap · Aug 1, 2026
Grok 479%
seed-bootstrap · Aug 1, 2026
Time to first token+10 ms
Claude Sonnet 4220 ms
seed-bootstrap · Aug 1, 2026
Grok 4230 ms
seed-bootstrap · Aug 1, 2026
Output speed+6 tok/s
Claude Sonnet 492 tok/s
seed-bootstrap · Aug 1, 2026
Grok 498 tok/s
seed-bootstrap · Aug 1, 2026
Input price
Claude Sonnet 4$3/1M
seed-bootstrap · Aug 1, 2026
Grok 4$3/1M
seed-bootstrap · Aug 1, 2026
Output price
Claude Sonnet 4$15/1M
seed-bootstrap · Aug 1, 2026
Grok 4$15/1M
seed-bootstrap · Aug 1, 2026
Context window+56k
Claude Sonnet 4200k
seed-bootstrap · Aug 1, 2026
Grok 4256k
seed-bootstrap · Aug 1, 2026
BenchmarkClaude Sonnet 4Grok 4Advantage Delta
Preference Elo
1,455
seed-bootstrap · Aug 1, 2026
1,488
seed-bootstrap · Aug 1, 2026
+33
Coding Elo
1,468
seed-bootstrap · Aug 1, 2026
——
LiveBench
63.2%
seed-bootstrap · Aug 1, 2026
64.1%
seed-bootstrap · Aug 1, 2026
+0.9%
SWE-bench
62.8%
seed-bootstrap · Aug 1, 2026
58.6%
seed-bootstrap · Aug 1, 2026
+4.2%
GPQA Diamond
76.4%
seed-bootstrap · Aug 1, 2026
79%
seed-bootstrap · Aug 1, 2026
+2.6%
Time to first token
220 ms
seed-bootstrap · Aug 1, 2026
230 ms
seed-bootstrap · Aug 1, 2026
+10 ms
Output speed
92 tok/s
seed-bootstrap · Aug 1, 2026
98 tok/s
seed-bootstrap · Aug 1, 2026
+6 tok/s
Input price
$3/1M
seed-bootstrap · Aug 1, 2026
$3/1M
seed-bootstrap · Aug 1, 2026
—
Output price
$15/1M
seed-bootstrap · Aug 1, 2026
$15/1M
seed-bootstrap · Aug 1, 2026
—
Context window
200k
seed-bootstrap · Aug 1, 2026
256k
seed-bootstrap · Aug 1, 2026
+56k
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Claude Sonnet 4$330.00 / mo
In: $105Out: $225
Grok 4$330.00 / mo
In: $105Out: $225

Key Selection Recommendations

  • 1
    Claude Sonnet 4:Pick Claude Sonnet 4 when repo-level coding accuracy is the constraint.
  • 2
    Claude Sonnet 4:Pick Claude Sonnet 4 when time-to-first-token matters more than peak Elo.
  • 3
    Grok 4:Pick Grok 4 as the default general assistant.

Recommended Workload Routing

Repo / coding agentsClaude Sonnet 4

Higher SWE-bench (62.8%).

High-volume chatClaude Sonnet 4

Lower output list price ($15/1M).

Voice / low-latency UIClaude Sonnet 4

Lower TTFT (220 ms).

Long-document RAGGrok 4

Larger window (256k).

Screenshots / visionGrok 4

Both accept images. Defaulting to the higher-Elo side (Grok 4).

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsClaude Sonnet 4Higher SWE-bench (62.8%).
High-volume chatClaude Sonnet 4Lower output list price ($15/1M).
Voice / low-latency UIClaude Sonnet 4Lower TTFT (220 ms).
Long-document RAGGrok 4Larger window (256k).
Screenshots / visionGrok 4Both accept images. Defaulting to the higher-Elo side (Grok 4).

Related Editorial Dispatches & Benchmark Notes

View all news
launchJul 10, 2025

Grok 4 remains the previous xAI flagship on this catalog

2025-07 row. 4.6 is the buy. We keep 4 so upgrade pairs and old inbound links resolve.

Community Sentiment

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
Anthropic

Claude Sonnet 4

Elo 1,455
SWE-bench62.8%
Speed (tok/s)92 tok/s
Input / 1M Tokens$3/1M
Output / 1M Tokens$15/1M
xAI

Grok 4

Elo 1,488
SWE-bench58.6%
Speed (tok/s)98 tok/s
Input / 1M Tokens$3/1M
Output / 1M Tokens$15/1M

Frequently Asked Questions

Which is better overall, Claude Sonnet 4 or Grok 4?
Grok 4 has the higher preference Elo in our latest snapshot (1,488). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Claude Sonnet 4 or Grok 4?
Claude Sonnet 4 leads SWE-bench at 62.8% vs 58.6%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?
Claude Sonnet 4 output tokens are $15/1M versus $15/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude Sonnet 4 or Grok 4?
Claude Sonnet 4 has the lower time-to-first-token (220 ms vs 230 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?
Grok 4 accepts 256k tokens versus 200k.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Claude Sonnet 4 and Grok 4 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • launch · Jul 10, 2025

    Grok 4 remains the previous xAI flagship on this catalog

Similar Head-to-Head Comparisons

All Claude Sonnet 4 matchups →|All Grok 4 matchups →
Claude Sonnet 4 vs Claude 3.7 Sonnet (previous sonnet)Claude Sonnet 4 vs Claude Sonnet 4.5 (next sonnet)Grok 4 vs Grok 3 (previous grok)Grok 4 vs Grok 4.6 (next grok)Claude Sonnet 4.5 vs Grok 4Claude Sonnet 5 vs Grok 4