Compare

Grok 4.20 Non-Reasoning vs Grok 4.20 Reasoning

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.

Search2/4
Grok 4.20 Non-Reasoning
xai/grok-4.20-0309-non-reasoning
Grok 4.20 Reasoning
xai/grok-4.20-0309-reasoning
Provider
xAI
xAI
Family
Grok 4
Grok 4
Modality
text
text
Context window
2,000,000 tok
2,000,000 tok
Max output
4,096 tok
4,096 tok
Released
2026-05-22
2026-05-22
License
Proprietary
Proprietary
Input price
$2.00 /1M
$2.00 /1M
Output price
$6.00 /1M
$6.00 /1M
Tools
Streaming
yes
yes
Vision
JSON mode
Reasoning
Prompt caching
Batch API
Try it
Open in playground →
Open in playground →
Grok 4.20 Non-Reasoning
xai/grok-4.20-0309-non-reasoning
Full spec →

xAI's Grok 4.20 non-reasoning model. Skips the thinking trace for fast, single-pass responses while keeping the same training as the reasoning variant.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows
Grok 4.20 Reasoning
xai/grok-4.20-0309-reasoning
Full spec →

xAI's Grok 4.20 reasoning model. Uses extended thinking to work through complex problems, returning a reasoning trace alongside the final answer.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Use cases
ChatbotsContent generationAgentic workflows

Compare with another

Grok 4 Fast vs Grok 4.20 Non-Reasoning
xai/grok-4-fast · xai/grok-4.20-0309-non-reasoning
Grok 4 Fast vs Grok 4.20 Reasoning
xai/grok-4-fast · xai/grok-4.20-0309-reasoning
Grok 4 vs Grok 4.20 Non-Reasoning
xai/grok-4 · xai/grok-4.20-0309-non-reasoning
Grok 4 vs Grok 4.20 Reasoning
xai/grok-4 · xai/grok-4.20-0309-reasoning
Grok 4.20 Multi-Agent vs Grok 4.20 Non-Reasoning
xai/grok-4.20-multi-agent-0309 · xai/grok-4.20-0309-non-reasoning
Grok 4.20 Multi-Agent vs Grok 4.20 Reasoning
xai/grok-4.20-multi-agent-0309 · xai/grok-4.20-0309-reasoning
Grok 4.20 Non-Reasoning vs Grok 4.3
xai/grok-4.20-0309-non-reasoning · xai/grok-4.3
Grok 4.20 Reasoning vs Grok 4.3
xai/grok-4.20-0309-reasoning · xai/grok-4.3
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-...",
)

# Grok 4.20 Non-Reasoning
client.chat.completions.create(
    model="xai/grok-4.20-0309-non-reasoning",
    messages=[{"role":"user","content":"hello"}],
)

# Grok 4.20 Reasoning
client.chat.completions.create(
    model="xai/grok-4.20-0309-reasoning",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyRun an eval on these →