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GPT-5.6 Sol vs Grok Imagine Image 2.0

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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GPT-5.6 Sol
openai/gpt-5.6-sol
Grok Imagine Image 2.0
xai/grok-imagine-image-2.0
Provider
OpenAI
xAI
Family
GPT-5
Modality
text
image
Context window
1,050,000 tok
Max output
128,000 tok
Released
2026-07-10
License
Proprietary
Proprietary
Input price
$5.00 /1M
Output price
$30.00 /1M
Per image
$0.060 /img
Tools
yes
Streaming
yes
Vision
yes
JSON mode
yes
Reasoning
yes
Prompt caching
Batch API
Try it
Open in playground →
View model →
GPT-5.6 Sol
openai/gpt-5.6-sol
Full spec →

GPT-5.6 Sol is OpenAI's frontier GPT-5.6 model for complex professional work, using the Responses API for reasoning and stateful context management.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows
Grok Imagine Image 2.0
xai/grok-imagine-image-2.0
Full spec →

Generate images from text using xAi's Grok Imagine 2.0 model.

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

Compare with another

Grok 4.6 vs GPT-5.6 Sol
xai/grok-4.6 · openai/gpt-5.6-sol
Gemini 3.7 Flash vs GPT-5.6 Sol
google/gemini-3.7-flash · openai/gpt-5.6-sol
Claude Opus 5 vs GPT-5.6 Sol
anthropic/claude-opus-5 · openai/gpt-5.6-sol
Qwen3.8 Max vs GPT-5.6 Sol
alibaba/qwen3.8-max · openai/gpt-5.6-sol
Kimi K3 vs GPT-5.6 Sol
moonshot/kimi-k3 · openai/gpt-5.6-sol
GPT-5.6 Sol vs Claude Fable 5
openai/gpt-5.6-sol · anthropic/claude-fable-5
GPT-5.6 Sol vs GLM-5.2
openai/gpt-5.6-sol · zai-org/glm-5.2
GPT-5.6 Sol vs Gemini 3.1 Pro
openai/gpt-5.6-sol · google/gemini-3.1-pro
GPT-5.6 Sol vs Qwen3.6 Plus
openai/gpt-5.6-sol · alibaba/qwen3.6-plus
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-...",
)

# GPT-5.6 Sol
client.chat.completions.create(
    model="openai/gpt-5.6-sol",
    messages=[{"role":"user","content":"hello"}],
)

# Grok Imagine Image 2.0
client.chat.completions.create(
    model="xai/grok-imagine-image-2.0",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →