GPT-5.6 Terra vs Grok 4.5
Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Grok 4.5 leads for most workloads.
Based on BenchLM composite scores, July 2026.
GPT-5.6 Terra
--
Grok 4.5
75
Benchmark data for GPT-5.6 Terra and Grok 4.5 is coming soon on BenchLM.
Operational Comparison
GPT-5.6 Terra
Grok 4.5
$2.5 / $15
$2 / $6
N/A
N/A
N/A
N/A
1M
500K
Quick Verdict
Benchmark data for GPT-5.6 Terra and Grok 4.5 is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for GPT-5.6 Terra yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
GPT-5.6 Terra is priced at $2.50 input / $15.00 output per 1M tokens, versus $2.00 input / $6.00 output per 1M tokens for Grok 4.5. GPT-5.6 Terra has the larger context window at 1M, compared with 500K for Grok 4.5.
Benchmark Deep Dive
Frequently Asked Questions (3)
Can I compare GPT-5.6 Terra and Grok 4.5 on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for GPT-5.6 Terra and Grok 4.5 today?
GPT-5.6 Terra: $2.50 input / $15.00 output per 1M tokens Grok 4.5: $2.00 input / $6.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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