Gemini 4 Argon: Limits & API Pricing
Unofficial. Not affiliated with Google, Alibaba or Qwen.
Sources checked:
Availability
Google announced public availability on October 13, 2026. This is the public launch date, not a claim about the first disclosure. Google announcement
Model limits
- API model ID
gemini-4-argon- Shared input + output token limit
- 1,048,576
- Default synchronous output
- 65,536 tokens
- With the documented long-decode protocol
- Up to 1,048,576 output tokens within the shared limit.
Official specifications and protocol links
Standard paid API pricing
USD per million tokens. Through November 30, 2026: input $2, output including thinking $10, implicit cached input $0.10. From December 1: $4, $20 and $0.20 respectively. No API free tier is listed for this model. Official pricing; confirm before use
Official access
Consumer plans and API billing have different access rules. Check the specific product before subscribing.
Independent testing
We have not called this API or run an independent benchmark. No performance score is claimed here.