AI21: Jamba Large 1.7 vs SpaceXAI: Grok 4.5
They cost about the same for input tokens: AI21: Jamba Large 1.7 $2.00 per M, SpaceXAI: Grok 4.5 $2.00 per M. SpaceXAI: Grok 4.5 is 1.3× cheaper for output tokens: AI21: Jamba Large 1.7 costs $8.00 per M and SpaceXAI: Grok 4.5 costs $6.00 per M. SpaceXAI: Grok 4.5 reads more: AI21: Jamba Large 1.7 takes up to 256,000 tokens of context and SpaceXAI: Grok 4.5 up to 500,000. AI21: Jamba Large 1.7 accepts text; SpaceXAI: Grok 4.5 accepts file, image, text.
| AI21: Jamba Large 1.7 | SpaceXAI: Grok 4.5 | |
|---|---|---|
| Model id | ai21/jamba-large | x-ai/grok-4.5 |
| Input | $2.00 per M | $2.00 per M |
| Output | $8.00 per M | $6.00 per M |
| Context length | 256,000 tokens | 500,000 tokens |
| Accepts | text | file, image, text |
| Produces | text | text |
| Served by | ai21 | xai |
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.