OpenAI GPT-5.6 Terra VS xAI Grok 4.5
⚖️Our Take
Both models perform almost identically, with an average score gap of just 0.7%. We recommend choosing Grok 4.5 as it is the more cost-effective option (being 1.9x cheaper) without sacrificing any real-world capability.
Was this recommendation helpful?
Benchmarks & Scores
Coding (swe-bench-pro)
63.4%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)
92.9%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)
$5.63Input: $2.50 | Output: $15.00Context WindowLarger
1.05M tokensBenchmarks & Scores
Coding (swe-bench-pro)Winner (+1.3%)
64.7%excellent at multi-file repositories, autonomous agents, and industrial codebases
Reasoning (gpqa-diamond)Winner (+0.1%)
93%graduate-level science QA
Cost & Performance
Cost (per 1M tokens)1.9x cheaper
$3.00Input: $2.00 | Output: $6.00Context Window
500k tokensFrequently Asked Questions about GPT-5.6 Terra vs Grok 4.5 comparison
Grok 4.5 is cheaper than GPT-5.6 Terra. Grok 4.5 has a blended cost of $3.00/1M tokens, which is about 1.9x cheaper than GPT-5.6 Terra at $5.63/1M tokens.
Grok 4.5 is better for coding tasks on this benchmark. It scores 64.7% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases) compared to GPT-5.6 Terra which scores 63.4%.
Related Matchups
Explore similar comparisons for GPT-5.6 Terra and Grok 4.5.