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Google: Gemini 4 Argon vs OpenAI: GPT-6 Sol Pro: API Pricing Compared
Comparing Google: Gemini 4 Argon and OpenAI: GPT-6 Sol Pro: on combined input+output list price, Google: Gemini 4 Argon is cheaper at $12 vs $12 per 1M tokens — a difference of $0 (free) (0%). Google: Gemini 4 Argon costs $2 in / $10 out with a 1,048,576-token context; OpenAI: GPT-6 Sol Pro costs $2 in / $10 out with a 1,050,000-token context.
| Google: Gemini 4 Argon | OpenAI: GPT-6 Sol Pro | |
|---|---|---|
| Input /1M | $2 | $2 |
| Output /1M | $10 | $10 |
| Cached input /1M | $0.1 | $0.2 |
| Context window | 1,048,576 | 1,050,000 |
| Max output tokens | 943,718 | 128,000 |
| Cost @ 10M in + 2M out / mo | $40 | $40 |
Estimate your own workload in the cost calculator, or open the full pages for Google: Gemini 4 Argon and OpenAI: GPT-6 Sol Pro.
Frequently asked questions
Which is cheaper, Google: Gemini 4 Argon or OpenAI: GPT-6 Sol Pro?
Google: Gemini 4 Argon is cheaper on combined list price: $12 vs $12 per 1M tokens (input + output). At 10M input + 2M output tokens per month, Google: Gemini 4 Argon costs $40 and OpenAI: GPT-6 Sol Pro costs $40.
Which has the larger context window, Google: Gemini 4 Argon or OpenAI: GPT-6 Sol Pro?
Google: Gemini 4 Argon has a context window of 1,048,576 tokens; OpenAI: GPT-6 Sol Pro has 1,050,000 tokens. The larger one is OpenAI: GPT-6 Sol Pro.
Price snapshot October 21, 2026, refreshed daily.