Model comparison
GPT-5.2 Pro vs Grok 3 [Beta]
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: GPT-5.2 Pro #26 (Supported); Grok 3 [Beta] #179 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-5.2 Pro and Grok 3 [Beta] share 0 comparable benchmark results. 0 of 8 categories are comparable. 0 results are unique to GPT-5.2 Pro; 2 to Grok 3 [Beta].
Updated July 28, 2026- Shared results
- 0
- GPT-5.2 Pro only
- 0
- Grok 3 [Beta] only
- 2
- Comparable categories
- 0 / 8
Benchmark data for GPT-5.2 Pro and Grok 3 [Beta] is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM does not have sourced benchmark coverage for GPT-5.2 Pro yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
GPT-5.2 Pro has the larger context window at 400K, compared with 128K for Grok 3 [Beta].
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-5.2 Pro | Grok 3 [Beta] | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-5.2 Pro$25 input / $150 output | Grok 3 [Beta]Not available | A complete price comparison is not available. |
| Generation speedtokens per second | GPT-5.2 ProNot available | Grok 3 [Beta]Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-5.2 ProNot available | Grok 3 [Beta]Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-5.2 Pro400K | Grok 3 [Beta]128K | GPT-5.2 Pro lists the larger context window. |
Benchmark Deep Dive
Frequently Asked Questions (3)
Can I compare GPT-5.2 Pro and Grok 3 [Beta] 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-5.2 Pro and Grok 3 [Beta] today?
GPT-5.2 Pro: $25.00 input / $150.00 output per 1M tokens Grok 3 [Beta]: Pricing unavailable Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
Related Comparisons
Explore More
Know when it’s worth switching models
The model to choose, the cheaper alternative, and the release we would wait on.
One email each week. Unsubscribe anytime.