Compare

Kimi-K2.6 vs Seedream 5 Pro

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
Seedream 5 Pro
bytedance/seedream-5-pro
Provider
Moonshot
ByteDance
Family
Kimi
Seedream
Modality
text
image
Context window
262,144 tok
Max output
16,384 tok
Released
2026-04-20
2026-07-23
License
Open-weight
Proprietary
Input price
$0.950 /1M
Output price
$4.00 /1M
Cache read
$0.160 /1M
Per image
$0.045 /img
Tools
yes
Streaming
yes
Vision
yes
JSON mode
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
Seedream 5 Pro
bytedance/seedream-5-pro
Full spec →

Seedream 5 Pro is ByteDance's high-quality image generation and editing model with text prompts, up to 10 reference images, and 1K, 2K, or explicit pixel-size output controls.

Strengths
  • Text-to-image generation
  • Creative control
Use cases
Marketing assetsProduct mockupsConcept art

Benchmarks

Kimi-K2.6
Seedream 5 Pro
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 Opus 5 vs Kimi-K2.6
anthropic/claude-opus-5 · moonshot/kimi-k2.6
Claude Opus 5 vs Seedream 5 Pro
anthropic/claude-opus-5 · bytedance/seedream-5-pro
Grok 4.5 vs Kimi-K2.6
xai/grok-4.5 · moonshot/kimi-k2.6
Grok 4.5 vs Seedream 5 Pro
xai/grok-4.5 · bytedance/seedream-5-pro
Kimi K3 vs Kimi-K2.6
moonshot/kimi-k3 · moonshot/kimi-k2.6
Kimi K3 vs Seedream 5 Pro
moonshot/kimi-k3 · bytedance/seedream-5-pro
Gemini 3.6 Flash vs Kimi-K2.6
google/gemini-3.6-flash · moonshot/kimi-k2.6
Gemini 3.6 Flash vs Seedream 5 Pro
google/gemini-3.6-flash · bytedance/seedream-5-pro
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"}],
)

# Seedream 5 Pro
client.chat.completions.create(
    model="bytedance/seedream-5-pro",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →