Compare

Kimi-K2.6 vs Gemini 3.8 Flash TTS

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 2 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

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Kimi-K2.6
moonshot/kimi-k2.6
Gemini 3.8 Flash TTS
google/gemini-3.8-flash-tts
Provider
Moonshot
Google
Family
Kimi
Gemini 3
Modality
text
audio-tts
Context window
262,144 tok
—
Max output
16,384 tok
—
Released
2026-04-20
2026-10-06
License
Open-weight
Proprietary
Input price
$0.950 /1M
—
Output price
$4.00 /1M
—
Cache read
$0.160 /1M
—
Per 1K chars
—
$0.015 /1K ch
Tools
yes
yes
Streaming
yes
—
Vision
yes
yes
JSON mode
yes
yes
Reasoning
yes
—
Prompt caching
yes
—
Batch API
—
—
Try it
Open in playground →
View model →
Kimi-K2.6
moonshot/kimi-k2.6
Full spec →

Kimi K2.6 is a frontier-scale open-source 1T parameter model with a 262.1k context window, multi-turn tool calling, vision inputs, and structured outputs for agentic workloads.

Strengths
  • Frontier-scale 1T parameters, open-weight
  • ~10× cheaper than Opus
  • Multi-turn tool calling + vision
Use cases
Code agentsLong-document reasoningCost-conscious production
Gemini 3.8 Flash TTS
google/gemini-3.8-flash-tts
Full spec →

Gemini 3.8 Flash TTS is Google's flagship text-to-speech model for expressive, natural speech generation.

Strengths
  • Natural speech synthesis
Use cases
VoiceoversIVRAudiobooks

Benchmarks

Kimi-K2.6
Gemini 3.8 Flash TTS
HumanEval
92.7
—
SWE-Bench
68.2
—

Source: each provider's published benchmarks. Higher is better. Run an eval to compare on your own data.

Compare with another

Kimi-K2.6 vs Kimi-K2.7-Code
moonshot/kimi-k2.6 · moonshot/kimi-k2.7-code
Claude Sonnet 5.5 vs Kimi-K2.6
anthropic/claude-sonnet-5.5 · moonshot/kimi-k2.6
Claude Sonnet 5.5 vs Gemini 3.8 Flash TTS
anthropic/claude-sonnet-5.5 · google/gemini-3.8-flash-tts
GPT-6.1 Sol vs Kimi-K2.6
openai/gpt-6.1-sol · moonshot/kimi-k2.6
GPT-6.1 Sol vs Gemini 3.8 Flash TTS
openai/gpt-6.1-sol · google/gemini-3.8-flash-tts
Claude Opus 5.5 vs Kimi-K2.6
anthropic/claude-opus-5.5 · moonshot/kimi-k2.6
Claude Opus 5.5 vs Gemini 3.8 Flash TTS
anthropic/claude-opus-5.5 · google/gemini-3.8-flash-tts
Grok 4.7 vs Kimi-K2.6
xai/grok-4.7 · moonshot/kimi-k2.6
Grok 4.7 vs Gemini 3.8 Flash TTS
xai/grok-4.7 · google/gemini-3.8-flash-tts
SWITCH BETWEEN THEM

One key, all 2, one line different.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

# Kimi-K2.6
client.chat.completions.create(
    model="moonshot/kimi-k2.6",
    messages=[{"role":"user","content":"hello"}],
)

# Gemini 3.8 Flash TTS
client.chat.completions.create(
    model="google/gemini-3.8-flash-tts",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →