LLM Comparison

Claude Opus 5 vs Grok 4.5: benchmark scores, pricing & comparison.

Side-by-side Claude Opus 5 vs Grok 4.5 comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.

Open live leaderboardClaude Opus 5 model pageGrok 4.5 model page
Rank #3 vs #21AskClash overall scores 76.8 vs 61.7.
Pricing $5.00/$25.0 vs $2.00/$6.00Input and output token prices per 1M tokens when published.
Proprietary vs ProprietaryAnthropic vs xAI.

Claude Opus 5 vs Grok 4.5 benchmark comparison

Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.

MetricClaude Opus 5Grok 4.5
Overall Score76.861.7
Leaderboard Rank#3#21
ACB70.557.6
RWT9.09.0
Coding Agent Index68.176.4
HLE64.740.3
GPQA93.293.1
SWE-bench96.0—
SWE-Pro79.264.7
SWE-Atlas54.883.9
Terminal-Bench89.183.3
DeepSWE73.6—
GDPval-AA1861.01542.8
MCP Atlas85.8—
Finance Agent58.648.3
MMMU-Pro84.780.4
ARC-AGI 290.452.6
Input Price (per 1M tokens)$5.00$2.00
Output Price (per 1M tokens)$25.0$6.00
Context Window1M500K
Benchmarks Published1512

Claude Opus 5 vs Grok 4.5 head-to-head charts

Claude Opus 5 leads 10 and Grok 4.5 leads 2 of 13 shared benchmarks. Grok 4.5 is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

Claude Opus 5Grok 4.5
Overall
76.8Claude Opus 5
61.7Grok 4.5
ACB
70.5Claude Opus 5
57.6Grok 4.5
RWT
9.0Claude Opus 5
9.0Grok 4.5
Coding Agent Index
68.1Claude Opus 5
76.4Grok 4.5
HLE
64.7Claude Opus 5
40.3Grok 4.5
GPQA
93.2Claude Opus 5
93.1Grok 4.5
SWE-Pro
79.2Claude Opus 5
64.7Grok 4.5
SWE-Atlas
54.8Claude Opus 5
83.9Grok 4.5
Terminal-Bench
89.1Claude Opus 5
83.3Grok 4.5
GDPval-AA
1861.0Claude Opus 5
1542.8Grok 4.5
Finance Agent
58.6Claude Opus 5
48.3Grok 4.5
MMMU-Pro
84.7Claude Opus 5
80.4Grok 4.5
Claude Opus 5
Input$5.00
Output$25.0
Workload$10
Context1M
Grok 4.5
Input$2.00
Output$6.00
Workload$3.20
Context500K

Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.

More Claude Opus 5 and Grok 4.5 comparisons

Explore how Claude Opus 5 and Grok 4.5 stack up against other top-ranked LLMs.

Claude Fable 5.1 vs Claude Opus 5Claude Fable 5.1 vs Grok 4.5Claude Fable 5 vs Claude Opus 5Claude Fable 5 vs Grok 4.5Claude Opus 5 vs GPT-5.6 SolGPT-5.6 Sol vs Grok 4.5Claude Opus 5 vs GPT-6 AstraGPT-6 Astra vs Grok 4.5Claude Opus 5 vs Claude Opus 4.8Claude Opus 4.8 vs Grok 4.5

How to read this comparison

Benchmark scores

Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.

Token pricing

Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.

Coverage matters

Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.

This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.