Gemini 1.5 Flash vs Kimi-k1.5
Kimi-k1.5 leads the LLM Stats Score 17.2 to 6.0.
Google · Moonshot AI · Updated for 2026
Which is better?
Kimi-k1.5 leads the overall LLM Stats Score 17.2 to 6.0, ranking #224 overall.
In the 3 individual benchmarks reported for both models, Kimi-k1.5 wins 3; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemini 1.5 Flash
- you want predictable pricing at $0.15/M input and $0.60/M output
Choose Kimi-k1.5
- overall performance matters — it scores 17.2 and ranks #224 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 3 of 3 exact shared results
- you want the most recent training data — it shipped Jan 2025
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
22 reported for Gemini 1.5 Flash · 9 for Kimi-k1.5
Gemini 1.5 Flash outperforms in 0 benchmarks, while Kimi-k1.5 is better at 3 benchmarks (MathVista, MMLU, MMMU).
Kimi-k1.5 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Gemini 1.5 Flash specifies input context (1,048,576 tokens). Only Gemini 1.5 Flash specifies output context (8,192 tokens).
Input capabilities
Documented input modalities across available providers
Both Gemini 1.5 Flash and Kimi-k1.5 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemini 1.5 Flash
Kimi-k1.5
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Gemini 1.5 Flash was released on 2024-05-01, while Kimi-k1.5 was released on 2025-01-20.
Kimi-k1.5 is 9 months newer than Gemini 1.5 Flash.
May 1, 2024
2.4 years ago
Jan 20, 2025
1.7 years ago
8mo newerKnowledge Cutoff
When training data ends
Gemini 1.5 Flash has a documented knowledge cutoff of 2023-11-01, while Kimi-k1.5's cutoff date is not specified.
We can confirm Gemini 1.5 Flash's training data extends to 2023-11-01, but cannot make a direct comparison without Kimi-k1.5's cutoff date.
Nov 2023
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Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 1.5 Flash and Kimi-k1.5 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 1.5 Flash vs Kimi-k1.5.