Google: Gemini 3.5 Flash vs SpaceXAI: Grok 4.3

SpaceXAI: Grok 4.3 is 1.2× cheaper for input tokens: Google: Gemini 3.5 Flash costs $1.50 per M and SpaceXAI: Grok 4.3 costs $1.25 per M. SpaceXAI: Grok 4.3 is 3.6× cheaper for output tokens: Google: Gemini 3.5 Flash costs $9.00 per M and SpaceXAI: Grok 4.3 costs $2.50 per M. About the same: Google: Gemini 3.5 Flash takes up to 1,048,576 tokens of context and SpaceXAI: Grok 4.3 up to 1,000,000. Google: Gemini 3.5 Flash accepts audio, file, image, text, video; SpaceXAI: Grok 4.3 accepts file, image, text.

Google: Gemini 3.5 FlashSpaceXAI: Grok 4.3
Model idgoogle/gemini-3.5-flashx-ai/grok-4.3
Input$1.50 per M$1.25 per M
Output$9.00 per M$2.50 per M
Context length1,048,576 tokens1,000,000 tokens
Acceptsaudio, file, image, text, videofile, image, text
Producestexttext
Served bygooglexai

Prices are the providers' list prices per million tokens, as of . Both run on your own provider key through one OpenAI-compatible endpoint, with no fee on the tokens.