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Every score has a dated snapshot.

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  3. GPT-5 vs Grok 4

Pairwise benchmark snapshot · Aug 1, 2026

GPT-5 vs Grok 4 benchmark

In this head-to-head showdown, GPT-5 delivers higher overall intelligence and human-preferred responses (Elo 1,558 vs 1,488), while GPT-5 leads in SWE-bench software engineering benchmarks (68.4%), while Grok 4 is more budget-friendly at $15/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose GPT-5 if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Grok 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

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

GPT-5 (5)Grok 4 (4)
GPT-5
5 of 9 Wins
✓Preference Elo✓LiveBench✓SWE-bench✓GPQA Diamond✓Context window
Grok 4
4 of 9 Wins
✓Time to first token✓Output speed✓Input price✓Output price
OpenAI
Leads 5 of 9 metrics
GPT-5

OpenAI flagship reasoning model for 2025–26. Strong general preference Elo and multimodal coverage.

Elo 1,558$20/1M out
xAI
Leads 4 of 9 metrics
Grok 4

Previous xAI flagship.

Grok 4.0Elo 1,488$15/1M out

GPT-5 Series Lineage & Sibling Variants

2 models

Currently comparing GPT-5 vs Grok 4. Alternative family tiers available.

Active: GPT-5
GPT-5 mini$2

GPT-5 Thinking Depth & Cost Scaler

Model A

Simulate accuracy gains vs added response time & token cost

Mode: Medium (Standard)

Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.

Thinking Delay
290 ms
Standard speed
Reasoning Depth
~1,500
Internal tokens
Cost / 1k Calls
$38.50
4.5× standard bill
Accuracy Boost
+4.5% accuracy
STEM & SWE-bench
Top Rival Showdowns for GPT-5
All Matchups
Compare vs:vs Claude Opus 4.5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference LeaderGPT-5 Wins

GPT-5

Δ 70 Arena Elo pts

Throughput LeaderGrok 4 Wins

Grok 4

98 tok/s

Value per Dollar LeaderGrok 4 Wins

Grok 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.

GPT-5 (6)vsGrok 4 (4)
GPT-5: 6W (60%)Overall: GPT-5Grok 4: 4W (40%)
← GPT-5Grok 4 →
🏆GPT-5(5/5)

Intelligence & Reasoning

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

Benchmark
GPT-5vsGrok 4
Preference Elo
1,558vs1,488+70
Coding Elo
1,540vs—
SWE-bench
68.4%vs58.6%+9.8%
LiveBench
69.8%vs64.1%+5.7%
GPQA Diamond
85.2%vs79%+6.2%
GPT-5: 5WGrok 4: 0W
🏆Grok 4(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
GPT-5vsGrok 4
Output speed
78 tok/svs98 tok/s+20 tok/s
Time to first token
290 msvs230 ms+60 ms
GPT-5: 0WGrok 4: 2W
🏆Grok 4(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
GPT-5vsGrok 4
Output price
$20/1Mvs$15/1M+$5/1M
Input price
$5/1Mvs$3/1M+$2/1M
Context window
400kvs256k+144k
GPT-5: 1WGrok 4: 2W

Side-by-Side Benchmark Matrix

Preference Elo+70
GPT-51,558
seed-bootstrap · Aug 1, 2026
Grok 41,488
seed-bootstrap · Aug 1, 2026
Coding Elo
GPT-51,540
seed-bootstrap · Aug 1, 2026
Grok 4—
LiveBench+5.7%
GPT-569.8%
seed-bootstrap · Aug 1, 2026
Grok 464.1%
seed-bootstrap · Aug 1, 2026
SWE-bench+9.8%
GPT-568.4%
seed-bootstrap · Aug 1, 2026
Grok 458.6%
seed-bootstrap · Aug 1, 2026
GPQA Diamond+6.2%
GPT-585.2%
seed-bootstrap · Aug 1, 2026
Grok 479%
seed-bootstrap · Aug 1, 2026
Time to first token+60 ms
GPT-5290 ms
seed-bootstrap · Aug 1, 2026
Grok 4230 ms
seed-bootstrap · Aug 1, 2026
Output speed+20 tok/s
GPT-578 tok/s
seed-bootstrap · Aug 1, 2026
Grok 498 tok/s
seed-bootstrap · Aug 1, 2026
Input price+$2/1M
GPT-5$5/1M
seed-bootstrap · Aug 1, 2026
Grok 4$3/1M
seed-bootstrap · Aug 1, 2026
Output price+$5/1M
GPT-5$20/1M
seed-bootstrap · Aug 1, 2026
Grok 4$15/1M
seed-bootstrap · Aug 1, 2026
Context window+144k
GPT-5400k
seed-bootstrap · Aug 1, 2026
Grok 4256k
seed-bootstrap · Aug 1, 2026
BenchmarkGPT-5Grok 4Advantage Delta
Preference Elo
1,558
seed-bootstrap · Aug 1, 2026
1,488
seed-bootstrap · Aug 1, 2026
+70
Coding Elo
1,540
seed-bootstrap · Aug 1, 2026
——
LiveBench
69.8%
seed-bootstrap · Aug 1, 2026
64.1%
seed-bootstrap · Aug 1, 2026
+5.7%
SWE-bench
68.4%
seed-bootstrap · Aug 1, 2026
58.6%
seed-bootstrap · Aug 1, 2026
+9.8%
GPQA Diamond
85.2%
seed-bootstrap · Aug 1, 2026
79%
seed-bootstrap · Aug 1, 2026
+6.2%
Time to first token
290 ms
seed-bootstrap · Aug 1, 2026
230 ms
seed-bootstrap · Aug 1, 2026
+60 ms
Output speed
78 tok/s
seed-bootstrap · Aug 1, 2026
98 tok/s
seed-bootstrap · Aug 1, 2026
+20 tok/s
Input price
$5/1M
seed-bootstrap · Aug 1, 2026
$3/1M
seed-bootstrap · Aug 1, 2026
+$2/1M
Output price
$20/1M
seed-bootstrap · Aug 1, 2026
$15/1M
seed-bootstrap · Aug 1, 2026
+$5/1M
Context window
400k
seed-bootstrap · Aug 1, 2026
256k
seed-bootstrap · Aug 1, 2026
+144k
Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 31% with Grok 4
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
GPT-5$475.00 / mo
In: $175Out: $300
Grok 4$330.00 / mo
In: $105Out: $225
Estimated Cost Delta

Grok 4 is estimated to save $145.00/month ($1,740/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    GPT-5:Pick GPT-5 when repo-level coding accuracy is the constraint.
  • 2
    Grok 4:Pick Grok 4 when you are optimizing output cost.
  • 3
    Grok 4:Pick Grok 4 when time-to-first-token matters more than peak Elo.

Recommended Workload Routing

Repo / coding agentsGPT-5

Higher SWE-bench (68.4%).

High-volume chatGrok 4

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

Voice / low-latency UIGrok 4

Lower TTFT (230 ms).

Long-document RAGGPT-5

Larger window (400k).

Screenshots / visionGPT-5

Both accept images. Defaulting to the higher-Elo side (GPT-5).

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsGPT-5Higher SWE-bench (68.4%).
High-volume chatGrok 4Lower output list price ($15/1M).
Voice / low-latency UIGrok 4Lower TTFT (230 ms).
Long-document RAGGPT-5Larger window (400k).
Screenshots / visionGPT-5Both accept images. Defaulting to the higher-Elo side (GPT-5).

Related Editorial Dispatches & Benchmark Notes

View all news
launchAug 8, 2025

GPT-5 (2025) remains the legacy OpenAI flagship baseline

Still a common compare target. 5.6 Sol replaced it as the buy; GPT-5 stays for old URLs.

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
OpenAI

GPT-5

Elo 1,558
SWE-bench68.4%
Speed (tok/s)78 tok/s
Input / 1M Tokens$5/1M
Output / 1M Tokens$20/1M
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, GPT-5 or Grok 4?
GPT-5 has the higher preference Elo in our latest snapshot (1,558). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, GPT-5 or Grok 4?
GPT-5 leads SWE-bench at 68.4% vs 58.6%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?
Grok 4 output tokens are $15/1M versus $20/1M. Input prices and retry rates still move the real bill.
Which is faster, GPT-5 or Grok 4?
Grok 4 has the lower time-to-first-token (230 ms vs 290 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?
GPT-5 accepts 400k tokens versus 256k.
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. GPT-5 and Grok 4 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • launch · Aug 8, 2025

    GPT-5 (2025) remains the legacy OpenAI flagship baseline

  • launch · Jul 10, 2025

    Grok 4 remains the previous xAI flagship on this catalog

Similar Head-to-Head Comparisons

All GPT-5 matchups →|All Grok 4 matchups →
GPT-5 vs GPT-4.5 Orion (previous gpt-flagship)GPT-5 vs GPT-5.6 Sol (next gpt-flagship)Grok 4 vs Grok 3 (previous grok)Grok 4 vs Grok 4.6 (next grok)OpenAI o3-mini vs GPT-5GPT-5.6 Terra vs GPT-5