Pricing · Google

Gemini 4 Argon

Google's gemini-4-argon, 1.0M tokens of context. Every number on this page was read off Google's own pricing page — never estimated, never recalled from memory.

Promotional pricing until November 30, 2026. After that date it reverts to list price: $4.00 input and $20.00 output per 1M tokens (cached input $0.20) — roughly 2.0× the current input price. Budget for the change now, not in November.

How Google describes it

“Our flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, autonomous multi-step agents, and long-decode generation up to 1M tokens.”

From Google's documentation

• Long prompts: “Unified 1M input-output token limit: Input, thinking, and output share one window of 1,048,576 tokens.” (documentation page, read October 14, 2026)
• Reasoning effort: “Configure thinking level: Choose low , medium (default), or high , and test your workload at all three.” (documentation page, read October 14, 2026)
• Access: “Gemini 4 Argon is not available on the Free tier or on the Google AI Pro plan.” (official pricing page, read October 14, 2026)

Pricing

At the calculator's starting volume, 1M input tokens and 200K output tokens with no cache hits, Gemini 4 Argon costs $4.00: $2.00 for input and $2.00 for output, at the promotional prices above. Same formula as the calculator; change the volume there.

Where this price sits

$2.00 per 1M input tokens is the 37th cheapest input price of the 68 current models with a verified price on this site, and the 9th of Google's 10. Output costs 5.0× the input price.

Mentioned in

One post on this site cites Gemini 4 Argon. The sentence is the post's own, taken from where it links here.

• Gemini 4 Argon vs Muse Wonder: Same Price, Until Nov 30 · October 14, 2026

  | Model | Input | Output | Cached input | Until | Status | |---|---|---|---|---|---| | Gemini 4 Argon, introductory | $2.00 | $10.00 | $0.10 | November 30, 2026 | GA | | Gemini 4 Argon, list | $4.00 | $20.00 | $0.20 | from December 1, 2026 | GA | | Muse Wonder | $4.00 | $20.00 | $0.20 | no end printed | preview |

Recorded price changes

Every change this site has recorded for Gemini 4 Argon, with the date it took or takes effect and why. Corrections of our own reading are listed too, and say so.

• December 1, 2026 (announced) · price up 2.0×

  Gemini 4 Argon pricing is introductory until November 30, 2026. On December 1, 2026 it doubles: input from $2.00 to $4.00 and output from $10.00 to $20.00 per million tokens, the list prices Google shows next to the introductory ones.

  Source

Every price change recorded on this site →

Specifications

Gemini 4 Argon was released on October 13, 2026. It returns up to 66K tokens per response, against a context window of 1.0M tokens.

Questions about Gemini 4 Argon pricing

How much does Gemini 4 Argon cost per million tokens?

$2.00 per 1M input tokens and $10.00 per 1M output tokens, read on Google's official pricing page on October 14, 2026.

What does a cached input token cost on Gemini 4 Argon?

$0.10 per 1M cached input tokens, 5% of the $2.00 input price.

Is Gemini 4 Argon's price a promotion?

Yes. $2.00 input and $10.00 output are promotional prices until November 30, 2026; the list price Google publishes for after that is $4.00 input and $20.00 output per 1M tokens.

Added 2026-10-14 after the new-models scan flagged it. Google's pricing page, read 2026-10-14, Standard, Paid Tier, per 1M tokens: 'Input price … $2.00 through November 30, 2026. $4.00 starting December 1, 2026.', 'Output price (including thinking tokens) … $10.00 through November 30, 2026. $20.00 starting December 1, 2026.', 'Context caching price … $0.10 through November 30, 2026. $0.20 starting December 1, 2026. Implicit caching only (explicit caching is not supported).' The page prints no long-prompt tier for this model and says 'Gemini 4 Argon is not available on the Free tier or on the Google AI Pro plan.' Release: Google's release notes, 'October 13, 2026 Gemini 4 Argon ( gemini-4-argon ) generally available (GA) : Released'. Unlike other Gemini rows, Google's model page (ai.google.dev/gemini-api/docs/models/gemini-4-argon, read 2026-10-14) gives a shared window, not an input limit: 'Context window (unified input and output token limit) 1,048,576' and 'Max output 65,536 (default synchronous) / up to 1,048,576 (with long decode )'; maxOutput here is the default synchronous figure.

Verified October 14, 2026 against Google's official pricing page. Confidence: confirmed. How the data is checked.

Other Google models with a verified price

• Gemini 2.5 Flash-Lite Gemini Flash-Lite $0.10 in · $0.40 out
• Gemini 3.5 Flash-Lite Gemini Flash-Lite $0.30 in · $2.50 out
• Gemini 2.5 Flash Gemini Flash $0.30 in · $2.50 out
• Gemini 3.8 Flash Gemini Flash $0.75 in · $3.75 out · promo
• Gemini 3.6 Flash Gemini Flash $0.75 in · $3.75 out · promo
• Gemini Robotics ER 2 Preview Gemini Robotics $1.00 in · $5.00 out · promo
• Gemini Robotics ER 2 Streaming Preview Gemini Robotics $1.00 in · $5.00 out · promo
• Gemini 2.5 Pro Gemini Pro $1.25 in · $10.00 out
• Gemini 3.1 Pro Preview Gemini Pro $2.00 in · $12.00 out

Cheaper or equally priced alternatives

Current models with an input price at or below $2.00 per 1M tokens.

• GPT-6.1 Sol OpenAI $2.00 in · $10.00 out
• GPT-6 Sol OpenAI $2.00 in · $10.00 out
• GPT-5.6 Terra OpenAI $2.00 in · $12.00 out
• Claude Sonnet 5.5 Anthropic $2.00 in · $10.00 out

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