Model comparison
Gemini 3.6 Flash vs Kimi K3
Head-to-head evidence from 18 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemini 3.6 Flash unranked (Not scored); Kimi K3 #4 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemini 3.6 Flash and Kimi K3 share 18 comparable benchmark results. 1 of 8 categories are comparable. 1 result is unique to Gemini 3.6 Flash; 39 to Kimi K3.
Updated July 21, 2026- Shared results
- 18
- Gemini 3.6 Flash only
- 1
- Kimi K3 only
- 39
- Comparable categories
- 1 / 8
Treat this as a split decision. Gemini 3.6 Flash makes more sense if you want the cheaper token bill; Kimi K3 is the better fit if agentic is the priority or you need the larger 1.05M context window.
Confidence note. This is a partial-evidence comparison with 18 shared benchmark results across 5 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Gemini 3.6 Flash and Kimi K3 finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.
Kimi K3 is also the more expensive model on tokens at $3.00 input / $15.00 output per 1M tokens, versus $1.50 input / $7.50 output per 1M tokens for Gemini 3.6 Flash. That is roughly 2.0x on output cost alone. Kimi K3 gives you the larger context window at 1.05M, compared with 1M for Gemini 3.6 Flash.
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 | Gemini 3.6 Flash | Δ | Kimi K3 |
|---|---|---|---|
| Agentic | Gemini 3.6 Flash83.0 | Margin→ 6.5 | Kimi K389.5 |
| Knowledge | Gemini 3.6 FlashNot measured | MarginNo overlap | Kimi K361.0 |
| Multimodal | Gemini 3.6 FlashNot measured | MarginNo overlap | Kimi K378.5 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemini 3.6 Flash | Kimi K3 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemini 3.6 Flash$1.5 input / $7.5 output | Kimi K3$3 input / $15 output | Gemini 3.6 Flash has the lower combined listed price. |
| Generation speedtokens per second | Gemini 3.6 FlashNot available | Kimi K3Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemini 3.6 FlashNot available | Kimi K3Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemini 3.6 Flash1M | Kimi K31.05M | Kimi K3 lists the larger context window. |
Benchmark Deep Dive
AgenticKimi K3 wins22 benchmarks
| Benchmark | Gemini 3.6 Flash | Kimi K3 | Result |
|---|---|---|---|
| OSWorld-VerifiedSource | 83% | — | Not comparable |
| GDPval-AASource | 1421 | 1679 | Kimi K3 leads |
| AA Agentic IndexSource | 38.7% | 50.1% | Kimi K3 leads |
| GDPval-AASource | 46.1% | 59.0% | Kimi K3 leads |
| AA BriefcaseSource | 961 | 1543 | Kimi K3 leads |
| AA Tau3 BankingSource | 24.5% | 33.4% | Kimi K3 leads |
| aaTerminalBench21Source | 77.5% | 85% | Kimi K3 leads |
| Terminal-Bench 2.0Source | — | 88.3% | Not comparable |
| BrowseCompSource | — | 91.2% | Not comparable |
| DeepSearchQASource | — | 95.0% | Not comparable |
| Toolathlon-VerifiedSource | — | 73.2% | Not comparable |
| MCP AtlasSource | — | 84.2% | Not comparable |
| AutomationBenchSource | — | 30.8% | Not comparable |
| JobBenchSource | — | 52.9% | Not comparable |
| APEX-AgentsSource | — | 37.6% | Not comparable |
| SpreadsheetBench 2Source | — | 34.8% | Not comparable |
| DECK-BenchSource | — | 73.5% | Not comparable |
| AA AutomationBenchSource | — | 52.7% | Not comparable |
| AA EnterpriseOps-GymSource | — | 45.3% | Not comparable |
| AA Harvey LABSource | — | 94.6% | Not comparable |
| APEX-Agents-AASource | — | 41.3% | Not comparable |
| AA ITBenchSource | — | 47.7% | Not comparable |
Coding9 benchmarks
| Benchmark | Gemini 3.6 Flash | Kimi K3 | Result |
|---|---|---|---|
| deepSweSource | 49% | 67.5% | Kimi K3 leads |
| AA Coding IndexSource | 69.2% | 76.2% | Kimi K3 leads |
| AA-SciCodeSource | 52.7% | 58.7% | Kimi K3 leads |
| FrontierSWESource | — | 81.2% | Not comparable |
| ProgramBenchSource | — | 77.8% | Not comparable |
| Kimi Code Bench v2Source | — | 72.9% | Not comparable |
| sweMarathonSource | — | 42% | Not comparable |
| PostTrain BenchSource | — | 36.6% | Not comparable |
| MLS-Bench LiteSource | — | 48.3% | Not comparable |
Reasoning2 benchmarks
Knowledge10 benchmarks
| Benchmark | Gemini 3.6 Flash | Kimi K3 | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 50.1% | 57.1% | Kimi K3 leads |
| AA-GPQA DiamondSource | 92.8% | 93.5% | Kimi K3 leads |
| AA-HLESource | 38.3% | 44.3% | Kimi K3 leads |
| AA-Omniscience IndexSource | 23.5% | 18.4% | Gemini 3.6 Flash leads |
| AA-Omniscience AccuracySource | 50.2% | 46.0% | Gemini 3.6 Flash leads |
| AA-Omniscience Hallucination RateSource | 53.5% | 50.9% | Kimi K3 leads |
| GPQASource | — | 93.5% | Not comparable |
| GPQA-DSource | — | 93.5% | Not comparable |
| HLESource | — | 56% | Not comparable |
| HLE w/o toolsSource | — | 43.5% | Not comparable |
Multimodal15 benchmarks
| Benchmark | Gemini 3.6 Flash | Kimi K3 | Result |
|---|---|---|---|
| AA-MMMU-ProSource | 83.2% | 80.5% | Gemini 3.6 Flash leads |
| OfficeQA ProSource | — | 63.3% | Not comparable |
| MMMU-ProSource | — | 81.6% | Not comparable |
| MMMU-Pro w/ PythonSource | — | 83.4% | Not comparable |
| CharXiv w/o toolsSource | — | 84.8% | Not comparable |
| CharXivSource | — | 91.3% | Not comparable |
| MathVisionSource | — | 94.3% | Not comparable |
| MathVision w/ PythonSource | — | 97.8% | Not comparable |
| BabyVision w/ PythonSource | — | 85.7% | Not comparable |
| ZeroBenchSource | — | 23.0% | Not comparable |
| ZeroBench w/ PythonSource | — | 41.0% | Not comparable |
| WorldVQA ForceAnswerSource | — | 51.0% | Not comparable |
| OmniDocBenchSource | — | 91.1% | Not comparable |
| PerceptionBenchSource | — | 58.5% | Not comparable |
| Design Arena WebsiteSource | — | 1386 | Not comparable |
Frequently Asked Questions (2)
Which is better, Gemini 3.6 Flash or Kimi K3?
Gemini 3.6 Flash and Kimi K3 are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.
Which is better for agentic tasks, Gemini 3.6 Flash or Kimi K3?
Kimi K3 has the edge for agentic tasks in this comparison, averaging 89.5 versus 83. Inside this category, AA Briefcase is the benchmark that creates the most daylight between them.
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