Model comparison
Kimi K2 vs Step 3.7 Flash
Head-to-head evidence from 13 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
BenchAlign evidence: Kimi K2 supported; Step 3.7 Flash estimated. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Kimi K2 and Step 3.7 Flash share 13 comparable benchmark results. 0 of 8 categories are comparable. 2 results are unique to Kimi K2; 17 to Step 3.7 Flash.
Updated July 16, 2026- Shared results
- 13
- Kimi K2 only
- 2
- Step 3.7 Flash only
- 17
- Comparable categories
- 0 / 8
Benchmark data for Kimi K2 and Step 3.7 Flash is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 13 shared benchmark results across 6 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 has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Kimi K2 is priced at $0.60 input / $2.50 output per 1M tokens, versus $0.20 input / $1.15 output per 1M tokens for Step 3.7 Flash. Step 3.7 Flash has the larger context window at 256K, compared with 128K for Kimi K2.
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 | Kimi K2 | Δ | Step 3.7 Flash |
|---|---|---|---|
| Agentic | Kimi K2Not measured | MarginNo overlap | Step 3.7 Flash66.4 |
| Coding | Kimi K2Not measured | MarginNo overlap | Step 3.7 Flash56.3 |
| Math | Kimi K216.1 | MarginNo overlap | Step 3.7 FlashNot measured |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Kimi K2 | Step 3.7 Flash | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Kimi K2$0.6 input / $2.5 output | Step 3.7 Flash$0.2 input / $1.15 output | Step 3.7 Flash has the lower combined listed price. |
| Generation speedtokens per second | Kimi K243 tok/s | Step 3.7 FlashNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Kimi K21.51 s | Step 3.7 FlashNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Kimi K2128K | Step 3.7 Flash256K | Step 3.7 Flash lists the larger context window. |
Benchmark Deep Dive
Agentic12 benchmarks
| Benchmark | Kimi K2 | Step 3.7 Flash | Result |
|---|---|---|---|
| τ²-bench resultsSource | 61.1% | 98.5% | Step 3.7 Flash leads |
| Terminal-Bench 2.0Source | — | 59.5% | Not comparable |
| BrowseCompSource | — | 75.8% | Not comparable |
| DeepSearchQASource | — | 92.8% | Not comparable |
| GDPval-AASource | — | 25.9% | Not comparable |
| ToolathlonSource | — | 49.5% | Not comparable |
| Claw-EvalSource | — | 67.1% | Not comparable |
| HLE w/ toolsSource | — | 47.2% | Not comparable |
| Gert LabsSource | — | 51.57% | Not comparable |
| AA Agentic IndexSource | — | 21.5% | Not comparable |
| GDPval-AASource | — | 1017 | Not comparable |
| APEX-Agents-AASource | — | 14.8% | Not comparable |
Coding5 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Kimi K2 | Step 3.7 Flash | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 19.4% | 30.3% | Step 3.7 Flash leads |
| AA-GPQA DiamondSource | 76.6% | 80.9% | Step 3.7 Flash leads |
| AA-HLESource | 7.0% | 19.9% | Step 3.7 Flash leads |
| AA-Omniscience IndexSource | -27.5% | -37.5% | Kimi K2 leads |
| AA-Omniscience AccuracySource | 26.8% | 25.4% | Kimi K2 leads |
| AA-Omniscience Hallucination RateSource | 74.2% | 84.4% | Kimi K2 leads |
Math2 benchmarks
Multimodal4 benchmarks
Inst. Following1 benchmarks
| Benchmark | Kimi K2 | Step 3.7 Flash | Result |
|---|---|---|---|
| AA-IFBenchSource | 41.5% | 67.3% | Step 3.7 Flash leads |
Frequently Asked Questions (3)
Can I compare Kimi K2 and Step 3.7 Flash 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 Kimi K2 and Step 3.7 Flash today?
Kimi K2: $0.60 input / $2.50 output per 1M tokens Step 3.7 Flash: $0.20 input / $1.15 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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