AI Model Comparison

Grok 4.5 vs Claude Opus 4.7

Compare Grok 4.5 (high) vs Claude Opus 4.7 (Adaptive Reasoning, Max Effort) with benchmark results, speed, pricing, and practical workflow guidance.

Best For Grok 4.5 (high)

  • High-volume production environments
  • Cost-sensitive scaling
  • Latency-critical applications

Best For Claude Opus 4.7 (Adaptive Reasoning, Max Effort)

  • Complex reasoning tasks
  • AI-assisted software development
  • Projects requiring deep benchmark validation

Grok 4.5 and Claude Opus 4.7 represent the cutting edge of AI, with Grok 4.5 offering superior speed and cost-efficiency, while Claude Opus 4.7 provides a broader range of specialized benchmarks and slightly higher coding capabilities.

Quick Take

Grok 4.5 (SpaceXAI) and Claude Opus 4.7 (Anthropic) are high-performance models released in mid-2026. Grok 4.5 focuses on raw speed and affordability, while Claude Opus 4.7 offers a more comprehensive evaluation profile with a slight edge in coding performance.

Benchmark Read

When comparing intelligence, Grok 4.5 holds a marginal lead with an Intelligence Index of 53.8 compared to Claude Opus 4.7’s 53.5. In coding, Claude Opus 4.7 takes the lead with a 73.6 index against Grok’s 72.4.

Specific benchmark performance is as follows:

  • GPQA: Grok 4.5 (0.931) vs. Claude Opus 4.7 (0.914)
  • HLE: Grok 4.5 (0.403) vs. Claude Opus 4.7 (0.396)
  • SciCode: Grok 4.5 (0.541) vs. Claude Opus 4.7 (0.545)
  • LCR: Grok 4.5 (0.677) vs. Claude Opus 4.7 (0.703)

Claude Opus 4.7 also provides additional data points, including IFBench (0.586), TerminalBench Hard (0.515), and TAU2 (0.886).

Cost and Speed

Grok 4.5 is significantly more economical. Its blended pricing is $3.00/1M tokens, compared to $10.00/1M for Claude Opus 4.7. Output speed for Grok 4.5 is 95.563 tok/s, nearly double the 54.601 tok/s offered by Claude Opus 4.7. Grok 4.5 also achieves a faster time to first token at 17.192s, compared to 18.55s for Claude.

Best Fit

Grok 4.5 is the ideal choice for high-volume applications where latency and cost-per-token are critical constraints. Claude Opus 4.7 is better suited for complex reasoning tasks and specialized development environments where the breadth of its benchmark performance provides greater confidence in task-specific outcomes.

Benchmark table

Side-by-side scores, speed, and pricing for the selected models.

Metric SpaceXAI Grok 4.5 (high) Anthropic Claude Opus 4.7 (Adaptive Reasoning, Max Effort)
Index Scores
Intelligence Index 53.8 53.5
Coding Index 72.4 73.6
Math Index--
Benchmark Scores
GPQA 93.1 91.4
SciCode 54.1 54.5
IFBench- 58.6
HLE 40.3 39.6
LCR 67.7 70.3
TAU2- 88.6
TerminalBench Hard- 51.5

Verdict

Choose Grok 4.5 if your priority is high-speed output and cost-effective scaling, as it significantly outperforms Claude in token throughput and pricing. Opt for Claude Opus 4.7 if your workflow demands the specific reasoning depth reflected in its extensive benchmark suite, such as TerminalBench and TAU2, or if you are already integrated into the Anthropic development ecosystem.

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