Gemini 4 Argon vs GPT-6.1 Terra Pro

Price, context window & benchmark comparison

Google

Gemini 4 Argon

Google
$2.00 / $10.00
Input / Output · per 1M tokens
VS
OpenAI

GPT-6.1 Terra Pro

OpenAI
$1.00 / $5.00
Input / Output · per 1M tokens
Compare different models
Google
OpenAI
Verdict: GPT-6.1 Terra Pro is 2.0× cheaper than Gemini 4 Argon on a typical 3:1 input/output mix. GPT-6.1 Terra Pro has the larger context window (1.1M vs 1M).
Gemini 4 ArgonGPT-6.1 Terra Pro
Input price / 1M$2.00$1.00
Output price / 1M$10.00$5.00
Blended price (3:1)$4.00$2.00
Cached input / 1M$0.10$0.05
Context window1M1.1M
Max output944K128K
Intelligence index50.4—
Coding index——
Providers64
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-10-132026-10-26
Retirement——

Cost calculator

FAQ

Which is cheaper, Gemini 4 Argon or GPT-6.1 Terra Pro?

GPT-6.1 Terra Pro is 2.0× cheaper than Gemini 4 Argon on a typical 3:1 input/output mix.

Gemini 4 Argon vs GPT-6.1 Terra Pro: which has a bigger context window?

Gemini 4 Argon: 1,048,576 tokens. GPT-6.1 Terra Pro: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Gemini 4 Argon ≈ $9,000, GPT-6.1 Terra Pro ≈ $4,500.

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