Head to head · prices updated Nov 1, 2026

Gemini 4 Argon vs GPT-6 Astra

GPT-6 Astra costs 5.0× as much as Gemini 4 Argon at their cheapest providers (blended 3 input : 1 output tokens).

Google Gemini and Gemma

Gemini 4 Argon

$4.00 / 1M tokens

cheapest at Google Gemini API · $2.00 in · $10.00 out

Wins 3 of 4

OpenAI

GPT-6 Astra

$20.00 / 1M tokens

cheapest at OpenAI · $10.00 in · $50.00 out

Wins 1 of 4

  • Lower priceGemini 4 Argon
  • Higher accuracy (GPQA)Gemini 4 Argon
  • Longer contextGemini 4 Argon
  • More providersGPT-6 Astra

Verdict

Gemini 4 Argon is the better deal on price

GPT-6 Astra costs 5.0× as much as Gemini 4 Argon at their cheapest providers (blended 3 input : 1 output tokens).

Gemini 4 Argon scores higher on GPQA Diamond: 96.4% (high reasoning) vs 95.8% (max reasoning).

Gemini 4 Argon wins on both price and accuracy here.

Gemini 4 Argon accepts longer prompts (1049K vs 922K tokens).

Your monthly bill

What would each cost you?

Gemini 4 Argonat Google Gemini API
$40.00
GPT-6 Astraat OpenAI
$200.00

Gemini 4 Argon saves you $160.00 a month ($1,920.00 a year) for this workload.

Side by side

Gemini 4 ArgonGPT-6 Astra
Cheapest blended price / 1M$4.00$20.00
Input / output per 1M$2.00 / $10.00$10.00 / $50.00
Accuracy (GPQA Diamond)96.4% (high reasoning)95.8% (max reasoning)
Max context1M922K
Providers we track23

Standard list prices at each model's cheapest provider we track; blended = 3 input : 1 output tokens. GPQA Diamond from Epoch AI (CC BY 4.0), best measured reasoning setting, named next to each score. Methodology.

Where to buy each one

Questions people ask

Is Gemini 4 Argon cheaper than GPT-6 Astra?

GPT-6 Astra costs 5.0× as much as Gemini 4 Argon at their cheapest providers (blended 3 input : 1 output tokens).

Which is more accurate, Gemini 4 Argon or GPT-6 Astra?

On GPQA Diamond (graduate-level science questions, measured by Epoch AI) Gemini 4 Argon scores 96.4% (high reasoning) and GPT-6 Astra 95.8% (max reasoning). One benchmark is not the whole picture; test both on your own prompts.

How much does Gemini 4 Argon cost per 1M tokens?

From $2.00 input and $10.00 output per 1M tokens at Google Gemini API, the cheapest of 2 providers we track.

How much does GPT-6 Astra cost per 1M tokens?

From $10.00 input and $50.00 output per 1M tokens at OpenAI, the cheapest of 3 providers we track.

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