Compare / MiniMax M2.1 vs Kimi K2 0905
MiniMax M2.1 vs Kimi K2 0905
Which is cheaper, which is more capable, and which does better at each kind of work, from 12 results on 3 sources that measured both models.
MiniMax M2.1 or Kimi K2 0905? The short answer
- MiniMax M2.1 is cheaper: $0.52 against $1.07 per million tokens, 2.0 times less.
- MiniMax M2.1 scores higher on the Artificial Analysis Intelligence Index: 20.9 against 15.3.
- On our business benchmarks, MiniMax M2.1 ranks higher for reasoning and knowledge and sticking to the facts.
- On our business benchmarks, Kimi K2 0905 ranks higher for writing.
At a glance
| MiniMax M2.1 | Kimi K2 0905 | |
|---|---|---|
| Price per million tokens | $0.30 in · $1.20 out | $0.60 in · $2.50 out |
| Blended (3 in : 1 out) | $0.52 | $1.07 |
| Cheapest host, blended | $0.52 (Novita, FP8) | – |
| Intelligence Index | 20.9 | 15.3 |
| Spring Prompt overall | – | – |
| Output speed, tokens a second | – | – |
| Context window | 204,800 tokens | 262,144 tokens |
| Weights | Open | Open |
| Developer based in | China | China |
Prices are the developer's list price where we have read it, otherwise the typical host on OpenRouter; see every model's price. Intelligence and speed from Artificial Analysis.
Which is better for what
Each model's rank among models available today, for each kind of work, from our own benchmarks and licensed sources. The better rank is in green.
| Use case | MiniMax M2.1 | Kimi K2 0905 |
|---|---|---|
| Agents and tool useMulti-step tasks with tools: support desks, coding agents, function calls | 125 of 161 | not measured |
| Reasoning and knowledgeHard questions across science, maths and general knowledge | 86 of 195 | 124 of 195 |
| WritingWhat people prefer in blind comparisons, and judged writing quality | 106 of 187 | 71 of 187 |
| Sticking to the factsSummarising without inventing things, and factual answers | 116 of 153 | 135 of 153 |
Every shared result
| Benchmark | Metric | MiniMax M2.1 | Kimi K2 0905 |
|---|---|---|---|
| Artificial Analysisreported | Artificial Analysis Intelligence Indexindex score | 20.9 | 15.3 |
| Artificial Analysisreported | GPQA Diamond% of questions | 83.0% | 76.7% |
| Artificial Analysisreported | Humanity's Last Exam% of questions | 23.2% | 6.4% |
| Artificial Analysisreported | IFBench% of instructions | 69.9% | 41.7% |
| Artificial Analysisreported | Long-context reasoning (AA-LCR)% of questions | 67.7% | 53.0% |
| Artificial Analysisreported | Terminal-Bench Hard% of tasks | 28.8% | 23.5% |
| Artificial Analysisreported | Τ²-bench telecom% of tasks | 85.4% | 73.4% |
| UGI Leaderboardreported | Requested-length error% off the requested word count | 31.0% | 22.0% |
| UGI Leaderboardreported | Style adherencescore from 0 to 1 | 0.41 | 0.31 |
| UGI Leaderboardreported | Writing scorescore out of 100 | 41.6 | 54.4 |
| Vectara Hallucination Leaderboardreported | Answer rate% of documents | 98.5% | 98.6% |
| Vectara Hallucination Leaderboardreported | Hallucination rate% of summaries | 11.8% | 17.9% |
Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.
Quick answers
Is MiniMax M2.1 better than Kimi K2 0905?
It depends on the task. Among models available today, on our benchmarks and licensed sources, MiniMax M2.1 ranks higher for reasoning and knowledge and sticking to the facts; Kimi K2 0905 ranks higher for writing.
Which is cheaper, MiniMax M2.1 or Kimi K2 0905?
MiniMax M2.1 costs $0.52 per million tokens (three input to one output), against $1.07 for Kimi K2 0905.
Run MiniMax M2.1 and Kimi K2 0905 on your own prompt
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