Gemini 4 Argon Alternatives: 4 Models Ranked by Price
Four alternatives to Gemini 4 Argon range from budget-friendly Gemini 3.7 Flash at $0.75 input to premium GPT-6 Astra at $10 input per million tokens.
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Update, October 13, 2026: Gemini 4 Argon is now generally available: in the paid tier of the Gemini API (no free API tier) and the Gemini platform for business, in Google Antigravity for AI Ultra subscribers, and in the Gemini app and AI Mode in Search for Google AI Pro and Ultra subscribers (rolling out gradually). The API price of 2 USD input / 10 USD output per 1M tokens is introductory and runs until November 30, 2026; from December 1 it is 4 / 20 USD. Current prices, availability and our test
Gemini 4 Argon, priced at $2 per million input tokens and $10 per million output tokens during its introductory period, sits in the middle of the 2026 model market. Four alternatives offer different trade-offs between cost and capability.
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Gemini 3.7 Flash costs $0.75 per million input tokens and $3.75 per million output tokens, making it the most affordable option. With a 1,048,576 token context window, it suits high-volume applications where cost matters more than cutting-edge performance. This model works well for content moderation, basic summarization, and batch processing tasks.
GPT-6.1 Sol matches Gemini 4 Argon exactly at $2 input and $10 output per million tokens. It offers a slightly larger 1,050,000 token context window. This model serves as a direct substitute when you need maximum context length at the same price point.
GPT-6 Astra and Claude Fable 5.1 both cost $10 per million input tokens and $50 per million output tokens, five times more than Gemini 4 Argon. GPT-6 Astra provides a 1,050,000 token context window, while Claude Fable 5.1 offers 1,000,000 tokens. According to the Artificial Analysis index, Gemini 4 Argon matches GPT-6 Astra in performance while costing approximately 60 percent less per task.
Choose Gemini 3.7 Flash for budget-conscious projects with straightforward requirements. Pick GPT-6.1 Sol when you need a larger context window at mid-tier pricing. Select GPT-6 Astra or Claude Fable 5.1 when your application demands premium performance and cost is secondary. Gemini 4 Argon itself balances strong performance in specialized domains like legal and financial work with competitive pricing.
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