Nova Premier 1.0 vs Kimi K2 0905
Kimi K2 0905 leads Nova Premier 1.0 on the Artificial Analysis Intelligence Index, 15.3 to 9.2, and Kimi K2 0905 costs 5.0x less per output token ($2.50 vs $12.50 per million). Updated October 21, 2026; 14 benchmarks have a result for both.
Nova Premier 1.0 or Kimi K2 0905: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Nova Premier 1.0 for a larger context window (1M against 262K tokens) and work measured by LiveCodeBench (Artificial Analysis run) or Terminal-Bench Hard (Artificial Analysis run), where it leads.
- Shared results
- 14
- Nova Premier 1.0 only
- 0
- Kimi K2 0905 only
- 3
- Like-for-like categories
- 8 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
Kimi K2 0905
Kimi K2 0905 leads, 15.3 against 9.2.
Same board, both measured
Web design
Design Arena: websites
Kimi K2 0905
Kimi K2 0905 leads, 1089 against 835.
Same board, both measured
Long documents
Listed context window
Nova Premier 1.0
Nova Premier 1.0 takes 1M tokens against 262K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Kimi K2 0905
Nova Premier 1.0 $0.0088, Kimi K2 0905 $0.0019 per turn.
List prices
At a glance
- Coding index
- Nova Premier 1.0 not benchmarked, Kimi K2 0905 not benchmarked.
- Widest category
- Math, 40.0 points apart on average over 2 shared benchmarks.
- Widest single gap
- AA Math Index: Nova Premier 1.0 17.3 against Kimi K2 0905 57.3, 40.0 points apart on a 0 to 100 scale.
- Output price
- Nova Premier 1.0 $12.50 against Kimi K2 0905 $2.50 per million output tokens, 5.0x apart.
- Context window
- Nova Premier 1.0 takes 1M tokens, Kimi K2 0905 262K.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Nova Premier 1.0 | Bars | Kimi K2 0905 | Ties |
|---|---|---|---|---|
| Coding | 0 | 3 | ||
| Intelligence | 0 | 1 | ||
| Agentic work | 0 | 1 | ||
| Reasoning | 0 | 3 | ||
| Math | 0 | 2 | ||
| Knowledge | 0 | 1 | ||
| Web design | 0 | 1 | ||
| General | 0 | 2 | ||
| All shared boards | 0 | 14 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index03
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| LiveCodeBench (Artificial Analysis run) | 31.7% | 61.0% | Kimi K2 0905 |
| Terminal-Bench Hard (Artificial Analysis run) | 6.8% | 23.5% | Kimi K2 0905 |
| WeirdML | Not measured | 36.7% | Only Kimi K2 0905 measured |
| ALE-Bench | 147.4 | 267.1 | Kimi K2 0905 |
| Neither model has a result on the other 35 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| AA Intelligence Index | 9.2 | 15.3 | Kimi K2 0905 |
| Neither model has a result on the other 1 board here | |||
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| τ²-Bench Telecom | 38.3% | 73.4% | Kimi K2 0905 |
| Neither model has a result on the other 40 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index03
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | 56.9% | 76.7% | Kimi K2 0905 |
| Humanity's Last Exam (Artificial Analysis run) | 4.2% | 6.4% | Kimi K2 0905 |
| Kagi LLM Benchmark | 44.8% | 52.2% | Kimi K2 0905 |
| Neither model has a result on the other 19 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| AA Math Index | 17.3 | 57.3 | Kimi K2 0905 |
| AIME 2025 (Artificial Analysis run) | 17.3% | 57.3% | Kimi K2 0905 |
| Neither model has a result on the other 11 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| MMLU Pro (Artificial Analysis run) | 73.3% | 81.9% | Kimi K2 0905 |
| Neither model has a result on the other 17 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| Design Arena: websites | 835 | 1089 | Kimi K2 0905 |
| Design Arena: all code categories | Not measured | 1098 | Only Kimi K2 0905 measured |
| Neither model has a result on the other 7 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| IFBench | 36.2% | 41.7% | Kimi K2 0905 |
| Long context reasoning (AA-LCR) | 34.3% | 53.0% | Kimi K2 0905 |
| Fiction.LiveBench | Not measured | 66.7% | Only Kimi K2 0905 measured |
| Neither model has a result on the other 43 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Nova Premier 1.0 | Kimi K2 0905 | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Kimi K2 0905 costs less
Repository review
50K input + 3K output tokens
Kimi K2 0905 costs less
Agent loop
200K input + 10K output tokens
Kimi K2 0905 costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Amazon Nova Premier 1.0 | MoonshotAI Kimi K2 0905 |
|---|---|---|
| Maker | Amazon | Moonshot AI |
| Weights | No public weights listed | Open weights |
| Released | October 31, 2025 | September 4, 2025 |
| Context window | 1M | 262K |
| Input $/Mtok | $2.50 | $0.60 |
| Output $/Mtok | $12.50 | $2.50 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Nova Premier 1.0 better than Kimi K2 0905 for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Nova Premier 1.0 for a larger context window (1M against 262K tokens) and work measured by LiveCodeBench (Artificial Analysis run) or Terminal-Bench Hard (Artificial Analysis run), where it leads.
Which is cheaper, Nova Premier 1.0 or Kimi K2 0905?
Nova Premier 1.0 costs $2.50 per million input tokens and $12.50 per million output tokens; Kimi K2 0905 costs $0.60 and $2.50. Cost per solved task is known for neither of them.
Which has the bigger context window, Nova Premier 1.0 or Kimi K2 0905?
Nova Premier 1.0, with 1M tokens against 262K.
How many benchmarks is the Nova Premier 1.0 vs Kimi K2 0905 comparison based on?
14 benchmarks have a result for both models as of October 21, 2026. Nova Premier 1.0's coding index rests on 0 independent benchmarks and Kimi K2 0905's on 0. Where only one model has a result, the page says so instead of naming a winner.