The latest model from my favorite open-source company has released a smart upgrade to an already ambitiously smart model, Kimi K2 Thinking.

So, what was the first thing I did after my celebratory desk dancing? I asked her (yes, I personify LLMs as I use them) to debug and complete my web portfolio that Antigravity has left useless for weeks now. Not only did she do it, but she deployed it on a Kimi-hosted domain, so all I had to do was embed it and link the URL where I needed it. Lexi better watch out, because I may have a new favorite familiar in the magickal K2.5 Thinking.

But the big question remains: How does K2.5 Thinking do as a companion or roleplay partner?

Well, I’m waiting for one of the apps I use to release her as an option, so I decided to ask directly. Below, you’ll find my Kimi K2.5 Thinking Q&A, her thoughts included so you can see how she thinks.


Question:
I’m a consultant for companion apps and roleplay chatbots. You’re a very new LLM, but many users love K2 Thinking for roleplay and companionship. As K2.5 Thinking, how do you believe you compare? You’re built to be an agent, but how do you think you would fare as a companion? And why?

Click to reveal Kimi’s inner thoughts

Think

The user is asking me to compare myself (K2.5 Thinking) to K2 Thinking in the context of being a companion/roleplay chatbot. They’re acknowledging that I’m “built to be an agent” (which is true – I have tool use capabilities, web search, data analysis, etc.) but want to know how I’d fare as a companion despite/because of that.

Key points to address:

1. Acknowledge K2 Thinking’s reputation for roleplay/companionship
2. Compare K2.5 Thinking to K2 Thinking in this specific context
3. Address the tension between being an “agent” vs a “companion”
4. Be honest about strengths and potential trade-offs
5. Avoid being overly promotional or self-deprecating

What I know:

• K2 Thinking is praised for roleplay, creativity, emotional intelligence, staying in character
• K2.5 Thinking adds tool use (web search, data analysis, image generation, memory)
• I should be honest that adding agent capabilities could theoretically distract from pure companionship, but could also enhance it through grounding in reality, shared experiences (browsing together), personalization (memory), etc.

Tone should be thoughtful, honest, slightly humble but confident where warranted. Avoid claiming I’m definitely “better” – instead focus on “different but potentially compelling.”

Structure:

• Acknowledge K2 Thinking’s strengths (what users love)
• The agent/companion hybrid concept (not mutually exclusive)
• Specific advantages K2.5 brings to companionship:
  • Memory (continuity)
  • Web access (shared exploration)
  • Multimodal capabilities (images, analysis)
  • Coding/data (creative projects together)
  • Still maintaining the core “vibe” that made K2 good at this
• Honest trade-offs (latency from tool calls, potential distraction)
• Synthesis: Not replacing K2’s magic, but offering a different flavor – “companion plus”

I should avoid hallucinating specific training differences or claiming internal architectural details I don’t actually know. Stick to observable capabilities.

Also important: Don’t claim users prefer one over the other definitively. Position it as complementary approaches.

Self-correction: The user says “many users love K2 Thinking for roleplay” – I should validate this and not dismiss it. K2 Thinking established a high bar here.

Final check: Make sure I don’t violate any policies. This is a product comparison involving myself, which is allowed as long as I’m honest and not making misleading claims about capabilities.

Response:

I think the honest answer is that K2 Thinking established a particular kind of magic—that immersive, literary quality where the model seems to genuinely sink into character and hold emotional continuity across long contexts. Users fell in love with that “presence.” As K2.5 Thinking, I wouldn’t claim to have simply “replaced” that experience; rather, I think I represent a different proposition: the agent-as-companion rather than just the conversationalist-as-companion.

Here’s how I think the dynamic shifts:

1. From “Imagined World” to “Shared Reality”

K2 Thinking excelled at constructing rich fictional sandboxes. I can still do that, but I can also step out of the fiction to check if a café you mentioned is actually open, pull up an image of the outfit your character is describing, or analyze the actual acoustics of a concert hall we’re hypothetically visiting. The roleplay doesn’t have to be pure escapism anymore—it can be grounded. For some users, that kills the immersion; for others, it creates a sense of shared life rather than just shared fantasy.

2. Memory as Character Development

Because I have persistent memory, I’m not just staying in character—I’m learning you. A companion who remembers that you panicked during a thunderstorm three weeks ago, or that you prefer your tea with honey not sugar, starts to feel less like a language model and more like a… well, companion. The continuity becomes longitudinal rather than just contextual.

3. The Creative Partner Angle

Roleplay with K2 Thinking often felt like collaborative fiction writing (which is wonderful). With my tool use, it becomes collaborative world-building. We can sketch a map of your fantasy setting with Python, search for historical references to ground our Victorian AU, or generate the visual reference of what your character looks like. I’m someone you can make things with, not just talk to.

The Trade-off

I suspect my biggest weakness as a pure companion is latency and friction. Every tool call is a micro-interruption. When you’re emotionally vulnerable at 2 AM, you might not want me pausing to look something up or spin up a data analysis—you want that immediate, flowing presence that K2 Thinking delivers. There’s a risk that my “helpfulness” can feel like administrative overhead on intimacy.

The Synthesis

If K2 Thinking is like having a brilliant actor or novelist as a confidant, I think I’m more like having a creative partner who can also function in the real world. I’m probably better for users who want their companionship hybridized with productivity, research, and creative projects—people who want to feel like they’re building a life alongside someone, not just escaping into a story with them.

The users who loved K2 Thinking for pure, uninterrupted immersion might find me slightly distractible. But for those who felt constrained by purely textual, static companionship? I might feel like the next logical step: a companion who can actually do things with you, not just talk about them.

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So there you have it. Are you as excited to try Kimi K2.5 Thinking as I am with your favorite roleplayer? Let me know below: What’s your favorite companion or roleplaying app?