Kimi K3 vs LongCat-2.0
Kimi K3 (Moonshot) and LongCat-2.0 (Meituan Inc) compared on benchmarks, pricing, context window, and use-case rankings.
- LongCat-2.0 is cheaper on input tokens — $0.30 vs $2.55 per 1M.
- LongCat-2.0 has a larger context window (1M vs 1M tokens).
- Kimi K3 ranks higher for coding (97th vs 14th percentile).
| Attribute | Kimi K3 | LongCat-2.0 |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 158 | — |
| Coding | 97 | 14 |
| Math | 81 | — |
| Reasoning & Knowledge | 73 | 40 |
| Agentic & Tools | 80 | — |
| Specifications | ||
| Developer | Moonshot | Meituan Inc |
| Family | Kimi | — |
| Released | Jul 16, 2026 | Jun 29, 2026 |
| Parameters | 2.8T | 1.6T |
| Availability | Open weights (non-commercial) | Open weights (unrestricted) |
| Context window | 1M | 1M |
| Price — $/M input | $2.55 | $0.30 |
| Price — $/M output | $12.75 | $1.20 |
| Inputs | text, image, video | text |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 97% | — |
| APEX | 39% | — |
| ARC-AGI | 95% | — |
| ARC-AGI-2 | 60% | — |
| GPQA Diamond | 93% | 78% |
| Humanity's Last Exam | 47% | 34% |
| SciCode | 60% | 36% |
| SimpleBench | 61% | — |
| SimpleQA Verified | 51% | — |
| WebDev Arena | 1674 | — |
| WeirdML | 83% | — |
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Which is cheaper, Kimi K3 or LongCat-2.0?
LongCat-2.0 is cheaper on input tokens at $0.30 per million, versus $2.55 (representative OpenRouter pricing).
Which has a larger context window, Kimi K3 or LongCat-2.0?
LongCat-2.0 supports up to 1M tokens, compared with 1M for the other.
Which is better for coding, Kimi K3 or LongCat-2.0?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Kimi K3 ranks higher — 97th vs 14th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.