Model comparison
Grok Build 0.1 vs Kimi K2.5 (Reasoning)
Head-to-head evidence from 1 shared benchmark result across 1 category. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Grok Build 0.1 unranked (Not scored); Kimi K2.5 (Reasoning) #57 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Grok Build 0.1 and Kimi K2.5 (Reasoning) share 1 comparable benchmark result. 0 of 8 categories are comparable. 0 results are unique to Grok Build 0.1; 26 to Kimi K2.5 (Reasoning).
Updated July 23, 2026- Shared results
- 1
- Grok Build 0.1 only
- 0
- Kimi K2.5 (Reasoning) only
- 26
- Comparable categories
- 0 / 8
Benchmark data for Grok Build 0.1 and Kimi K2.5 (Reasoning) is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 1 shared benchmark result across 1 evidence category; 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 has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Kimi K2.5 (Reasoning) is priced at $0.60 input / $3.00 output per 1M tokens, versus $1.00 input / $2.00 output per 1M tokens for Grok Build 0.1. Grok Build 0.1 has the larger context window at 256K, compared with 128K for Kimi K2.5 (Reasoning).
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Grok Build 0.1 | Δ | Kimi K2.5 (Reasoning) |
|---|---|---|---|
| Agentic | Grok Build 0.1Not measured | MarginNo overlap | Kimi K2.5 (Reasoning)55.0 |
| Coding | Grok Build 0.1Not measured | MarginNo overlap | Kimi K2.5 (Reasoning)76.8 |
| Knowledge | Grok Build 0.1Not measured | MarginNo overlap | Kimi K2.5 (Reasoning)87.2 |
| Multimodal | Grok Build 0.1Not measured | MarginNo overlap | Kimi K2.5 (Reasoning)78.5 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Grok Build 0.1 | Kimi K2.5 (Reasoning) | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Grok Build 0.1$1 input / $2 output | Kimi K2.5 (Reasoning)$0.6 input / $3 output | Grok Build 0.1 has the lower combined listed price. |
| Generation speedtokens per second | Grok Build 0.1Not available | Kimi K2.5 (Reasoning)Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Grok Build 0.1Not available | Kimi K2.5 (Reasoning)Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Grok Build 0.1256K | Kimi K2.5 (Reasoning)128K | Grok Build 0.1 lists the larger context window. |
Benchmark Deep Dive
Agentic8 benchmarks
| Benchmark | Grok Build 0.1 | Kimi K2.5 (Reasoning) | Result |
|---|---|---|---|
| Gert LabsSource | 49.15% | 32.58% | Grok Build 0.1 leads |
| Terminal-Bench 2.0Source | — | 50.8% | Not comparable |
| BrowseCompSource | — | 60.6% | Not comparable |
| APEX-Agents-AASource | — | 11.5% | Not comparable |
| τ²-bench resultsSource | — | 95.9% | Not comparable |
| AA Agentic IndexSource | — | 21.7% | Not comparable |
| GDPval-AASource | — | 25.4% | Not comparable |
| GDPval-AASource | — | 1009 | Not comparable |
Coding4 benchmarks
Reasoning2 benchmarks
Knowledge8 benchmarks
| Benchmark | Grok Build 0.1 | Kimi K2.5 (Reasoning) | Result |
|---|---|---|---|
| GPQASource | — | 87.6% | Not comparable |
| MMLU-ProSource | — | 87.1% | Not comparable |
| Artificial Analysis Intelligence IndexSource | — | 35.4% | Not comparable |
| AA-GPQA DiamondSource | — | 87.9% | Not comparable |
| AA-HLESource | — | 29.4% | Not comparable |
| AA-Omniscience IndexSource | — | -8.1% | Not comparable |
| AA-Omniscience AccuracySource | — | 34.3% | Not comparable |
| AA-Omniscience Hallucination RateSource | — | 64.6% | Not comparable |
Math1 benchmarks
| Benchmark | Grok Build 0.1 | Kimi K2.5 (Reasoning) | Result |
|---|---|---|---|
| AIME 2025Source | — | 96.1% | Not comparable |
Multimodal3 benchmarks
Inst. Following1 benchmarks
| Benchmark | Grok Build 0.1 | Kimi K2.5 (Reasoning) | Result |
|---|---|---|---|
| AA-IFBenchSource | — | 70.2% | Not comparable |
Frequently Asked Questions (3)
Can I compare Grok Build 0.1 and Kimi K2.5 (Reasoning) 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 Grok Build 0.1 and Kimi K2.5 (Reasoning) today?
Grok Build 0.1: $1.00 input / $2.00 output per 1M tokens Kimi K2.5 (Reasoning): $0.60 input / $3.00 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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