Standard Compute
Model comparison 2026

Gemini 3.8 Flash vs Grok 4.7

Gemini 3.8 Flash
Google · Balanced · Proprietary
$1.65/1M · 1.0M ctx
Grok 4.7
xAI · Balanced · Proprietary
$3.20/1M · 500K ctx

Community vote

Pick a winner in each dimension. You can change your vote any time.

Output Quality
Correctness and depth of what it produces
Agentic Ability
Tool calls, instruction-following, and multi-step tasks
Speed
Tokens per second and time-to-first-token
Value for money
How much capability you get per dollar
Reliability
Consistent results: fewer refusals, loops and format breaks

Specs and pricing side by side

Spec
Gemini 3.8 Flash
Grok 4.7
Maker
Google
xAI
Blended price / 1M
$1.65
$3.20
Input / output
$0.75 in · $3.75 out / 1M tokens
$2.00 in · $6.00 out / 1M tokens
Context window
1.0M
500K
Open weights
No
No
Tool use
Yes
Yes
Reasoning
Yes
Yes
Output Quality
9.1
9.2
Agentic Ability
8.9
9.0
Speed
9.2
7.8
Value for money
8.8
8.7
Reliability
8.9
8.6

Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).

Verdict: Gemini 3.8 Flash or Grok 4.7?

Updated 2026-10-13

Choose Gemini 3.8 Flash if you want high-throughput agents and Gemini CLI users who want speed and big context. Choose Grok 4.7 if you want output-heavy agent work at a mid-tier price.

In our editorial scoring, Gemini 3.8 Flash leads in 3 of five dimensions (speed, value for money and reliability), while Grok 4.7 leads in 2. On price, Gemini 3.8 Flash runs about $1.65 per 1M tokens (blended) and is proprietary; Grok 4.7 is about $3.20 and proprietary.

Where Gemini 3.8 Flash falls short
  • Price doubles to $1.50/$7.50 on January 1, 2027
  • Weak on long terminal tasks (19.1% on Terminal-Bench 4.0)
Full Gemini 3.8 Flash breakdown →
Where Grok 4.7 falls short
  • Prompts of 200K tokens or more cost double
  • Behind the Claude 5.5 and GPT-6 models on Terminal-Bench 4.0
Full Grok 4.7 breakdown →

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