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Anthropic

Claude Haiku 4.5

VS
xAI

Grok 4.20

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, Grok 4.20 is the premium intelligence choice, scoring 12.3% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Claude Haiku 4.5 is 1.5x cheaper to run. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Claude Haiku 4.5 offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Grok 4.20 fully justifies the cost.

Model Specs

Claude Haiku 4.5

Benchmarks & Scores

Coding (swe-bench-pro)
39.5%
Reasoning (gpqa-diamond)
73%

Cost & Performance

Cost (per 1M tokens)1.5x cheaper
$2.00Input: $1.00 | Output: $5.00
Speed
98.5 tps
Context Window
200k tokens
Model Specs

Grok 4.20

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+12.3%)
51.8%
Reasoning (gpqa-diamond)Winner (+17.0%)
90%

Cost & Performance

Cost (per 1M tokens)
$3.00Input: $2.00 | Output: $6.00
Speed2.4x faster
233 tps
Context WindowLarger
1M tokens
Read our data collection methodology

Frequently Asked Questions

Claude Haiku 4.5 is cheaper than Grok 4.20. Claude Haiku 4.5 has a blended cost of $2.00/1M tokens, which is about 1.5x cheaper than Grok 4.20 at $3.00/1M tokens.

Grok 4.20 is faster than Claude Haiku 4.5. Grok 4.20 generates 233 tokens per second (tps) compared to Claude Haiku 4.5 which generates 98.5 tokens per second.

Grok 4.20 is better for coding tasks. It scores 51.8% on coding evaluations (swe-bench-pro) compared to Claude Haiku 4.5 which scores 39.5%.

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