Model detail
grok-4.5
Pay-as-you-go
Dynamic pricing
2 tiers
Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Model specs
- Context length
- –
- Max output
- –
- I/O modalities
- –
- Released
- 2026-07
02
API endpoints
One MixRoute gateway, OpenAI-compatible
-
OpenAI-compatible
/v1/chat/completionsPOST -
OpenAI-compatible
/v1/responsesPOST
03
Tiered pricing
Unit: /1M Tokens
| Tier | Input /1M Tokens | Output /1M Tokens | Cache read /1M Tokens |
|---|---|---|---|
| standard Length ≤ 200K | $2.0000 | $6.0000 | $0.3000 |
| long_context Length > 200K | $4.0000 | $12.0000 | $0.6000 |
08
Token cost estimator
Live estimate from this page's pricing, not an actual bill
Share of the same prefix read repeatedly, up to 100%
One endpoint, a testable decision
Test this model and alternate routes with the same request format
Start from a real workload, then let quality, total cost, and failure conditions decide whether to send production traffic.