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Kimi K2.5
◆ OPEN
by Moonshot
OPEN WEIGHTSLOCALAPILONG CONTEXTPAIDREASONING
RANKED #33 OF 228 ASSISTANTS · OVERALL #57 OF 6,618 · VIBE SCORE 6.6 · 377 VOICES
Kimi K2.5 is Moonshot AI's native multimodal model, delivering state-of-the-art visual coding capability and a self-directed agent swarm paradigm. Built on Kimi K2 with continued pretraining over approximately 15T mixed...
HAPPY9.6
58 mentions
SAD5.4
14 mentions
VIBE TRAJECTORY
26 weeks · 433 voices
HONEYMOON FADING
Early praise is cooling off in recent weeks.
HOW TO USE IT
Open weights. You can use a hosted service, or download it and run it yourself, free.
RUN IT ON YOUR OWN MACHINE
Open weights: download Kimi K2.5 once and it's yours. No subscription, no rate limits, works offline.
1.04T total MoE parameters with 32B active per token, native INT4 base is about 595 GB, and extreme 1.8-bit quants are around 240 GB
- BARE MINIMUM
Custom PC with 1x NVIDIA RTX 3090 24GB and 256GB DDR5 RAM
24 GB VRAM PLUS 256 GB RAM
~$1900 USEDUD-TQ1_0 1.8-bit quant, ~10 tok/s via heavy MoE offload to system RAM, 8k context
- SWEET SPOT
Dual Mac Studio M2 Ultra with unified memory clustering (384
384 GB UNIFIED MEMORY
~$7200 USEDUD-Q2_K_XL 2-bit quant, ~15-20 tok/s, 32k context
- FULL POWER
8x NVIDIA RTX 4090 24GB multi-GPU workstation
192 GB VRAM PLUS 512 GB RAM
~$16000 BUILTNative INT4 / Q4 quant, ~25-35 tok/s, 64k context
LEARN HOW TO SET IT UP
WILL MY BOX RUN KIMI K2.5?
The three cards above are researched picks. Search the machine you actually have — we only say yes if it should reply at a usable speed, not just load the weights and crawl.
HARDWARE PICKS & PRICES ARE RESEARCHED FROM THE LIVE WEB AND REFRESHED AUTOMATICALLY. TREAT THEM AS BALLPARK, NOT GOSPEL.
WHAT CAN YOU ACTUALLY DO WITH IT?
Everyday jobs on each of those rigs: how long Kimi K2.5 takes, and how good the crowd says it is at that kind of work.
| THE JOB | BARE MINIMUMCustom PC with 1x NVIDIA RTX 3090 24GB and 256GB DDR5 RAM | SWEET SPOTDual Mac Studio M2 Ultra with unified memory clustering (384 | FULL POWER8x NVIDIA RTX 4090 24GB multi-GPU workstation |
|---|---|---|---|
| Write an emaila paragraph or two, drafted from a one-line brief | ~50 S★★★★★ | ~29 S★★★★★ | ~17 S★★★★★ |
| Summarize a documenta long report boiled down to the points that matter | ~2.5 MIN★★★★★ | ~86 S★★★★★ | ~50 S★★★★★ |
| Build a websitea small landing page, markup and styles together | ~13 MIN★★★★★ | ~7.6 MIN★★★★★ | ~4.4 MIN★★★★★ |
| Build a backendan API with routes, storage and tests | ~42 MIN★★★★★ | ~24 MIN★★★★★ | ~14 MIN★★★★★ |
| Build a gamea playable browser game in one file | ~25 MIN★★★★★ | ~14 MIN★★★★★ | ~8.3 MIN★★★★★ |
STARS ARE THE COMMUNITY SCORE FOR THAT KIND OF WORK, DOCKED FOR HOW SQUASHED THE WEIGHTS GET AT EACH TIER. TIMES ARE COMPUTED FROM RESEARCHED SPEEDS. BALLPARK, NOT GOSPEL.
WHAT THE INTERNET SAYS
The internet is split on Kimi K2.5. Biggest praise: help with code. Biggest gripe: saying no too much.
342 POSTS · 35 COMMENTS · REDDIT · HACKER NEWS · GITHUB · X · LEMMY · BLUESKY · BLOG · DEV FORUMS
PEOPLE LOVE
- Popular for coding help (7 mentions)
- Answers come back fast (4 mentions)
- People feel it is worth the money (2 mentions)
PEOPLE COMPLAIN ABOUT
- Sometimes makes things up (6 mentions)
- Refuses or lectures more than people like (5 mentions)
- Outages, errors, or limits get in the way (3 mentions)
TOPIC BY TOPIC
- Getting facts rightMIXED FEELINGS
5 thumbs up · 6 thumbs down
- Help with codeMOSTLY POSITIVE
7 thumbs up · 3 thumbs down
- Saying no too muchA SORE SPOT
1 thumbs up · 5 thumbs down
- SpeedPEOPLE LOVE THIS
4 thumbs up · 0 thumbs down
- Working when you need itA SORE SPOT
1 thumbs up · 3 thumbs down
- PriceMOSTLY POSITIVE
2 thumbs up · 1 thumbs down
IN THEIR OWN WORDS
- FROM BLOG >
“MiniMax M2.5: A Strong Coder with “Only” 230B Parameters The aforementioned GLM-5 and Kimi K2.5 are popular open-weight models, but according to OpenRouter statistics , they pale in comparison to MiniMax M2.5 , which was released on February 12 as well.”
LOOKING FOR AN ALTERNATIVE?
Checked picks first: tags say why you would switch, stars say how fully each one stands in for Kimi K2.5.
Gemini 3.7 Flash
Grok 4.6
Qwen3.8 27B> SOURCES (12)
- REDDIT · 2026-07-26 · 1110 UPVOTESDifferences Between Fable 5 and Opus 5 on MineBench.ai
Differences Between Fable 5 and Opus 5 on MineBench.ai
- REDDIT · 2026-01-27 · 812 UPVOTESOpen source Kimi-K2.5 is now beating Claude Opus 4.5 in many benchmarks including coding.
Open source Kimi-K2.5 is now beating Claude Opus 4.5 in many benchmarks including coding.
- REDDIT · 2026-01-27 · 809 UPVOTESKimi K2.5 Released!!!
Kimi K2.5 Released!!!
- REDDIT · 2026-03-20 · 636 UPVOTESCursor’s ‘Composer 2’ model is apparently just Kimi K2.5 with RL fine-tuning. Moonshot AI says they never paid or got permission
Cursor’s ‘Composer 2’ model is apparently just Kimi K2.5 with RL fine-tuning. Moonshot AI says they never paid or got permission
- REDDIT · 2026-06-11 · 616 UPVOTESDifferences Between Claude Opus 4.8 and Claude Fable 5 on MineBench
Differences Between Claude Opus 4.8 and Claude Fable 5 on MineBench
- REDDIT · 2026-03-20 · 528 UPVOTESAha! Caught you!
Aha! Caught you!
- REDDIT · 2026-05-31 · 507 UPVOTESDifferences Between Opus 4.7 and Opus 4.8 on MineBench
Differences Between Opus 4.7 and Opus 4.8 on MineBench
- HACKER NEWS · 2026-01-27 · 502 UPVOTESKimi Released Kimi K2.5, Open-Source Visual SOTA-Agentic Model
Kimi Released Kimi K2.5, Open-Source Visual SOTA-Agentic Model
- REDDIT · 2026-04-27 · 406 UPVOTESDifferences Between GPT 5.4 and GPT 5.5 on MineBench
Differences Between GPT 5.4 and GPT 5.5 on MineBench
- REDDIT · 2026-03-20 · 401 UPVOTEScomposer 2 is just Kimi K2.5 with RL?????
composer 2 is just Kimi K2.5 with RL?????
- HACKER NEWS · 2026-01-30 · 388 UPVOTESKimi K2.5 Technical Report [pdf]
Kimi K2.5 Technical Report [pdf]
- REDDIT · 2026-02-15 · 369 UPVOTESDeepSeek-v4 Benchmarks Leaked
DeepSeek-v4 Benchmarks Leaked