Migrating from grok-4.3 to grok-4.5
What changes when you move from grok-4.3 to grok-4.5: input price +60%, output price +140%.
- From
- grok-4.3
- Status
- Active
- Shutdown
- none announced
- Time left
- —
- To
- grok-4.5
- Status
- Active
- Shutdown
- none announced
- Time left
- —
Prices
USD per 1M tokens, standard tier| Type | grok-4.3 | grok-4.5 | Change |
|---|---|---|---|
| Input | $1.25first seen October 5, 2026 · source | $2.00first seen October 5, 2026 · source | +60% |
| Cached input | $0.20first seen October 5, 2026 · source | $0.30first seen October 5, 2026 · source | +50% |
| Output | $2.50first seen October 5, 2026 · source | $6.00first seen October 5, 2026 · source | +140% |
At 1M input and 250K output tokens a month: $1.875 on grok-4.3, $3.50 on grok-4.5 (+86.7%).
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
TokensNeither company publishes a context window or output limit for these models.
Benchmarks
Same benchmark, source and setting on both sides| Benchmark | grok-4.3 | grok-4.5 | Change |
|---|---|---|---|
| Arena TextArena. Ranges don't overlap. | 1442 ±4 | 1466 ±4 | +24 |
| Arena Text: CodingArena. Ranges don't overlap. | 1488 ±6 | 1514 ±7 | +26 |
| Arena WebDevArena. Ranges don't overlap. | 1357 ±6 | 1553 ±7 | +196 |
| Arena VisionArena. Ranges don't overlap. | 1243 ±6 | 1280 ±7 | +37 |
| Arena SearchArena. Ranges don't overlap. | 1193 ±5 | 1206 ±6 | +13 |
| FrontierMath Tier 4Epoch AI, high effort. | 14.6% | 24.4% | +9.8 pts |
| FrontierMath Tiers 1-3Epoch AI, high effort. | 42.8% | 57.2% | +14.4 pts |
| GPQA DiamondEpoch AI, high effort. | 88.8% | 93.4% | +4.6 pts |
| OTIS Mock AIME 2024-2025Epoch AI, high effort. | 93.3% | 97.8% | +4.5 pts |
| SimpleQA VerifiedEpoch AI, high effort. | 33.2% | 48.3% | +15.1 pts |
A score from one source is never compared with another source's, and company-reported scores are compared only within the same company; settings named where they differ. Data: Arena (arena.ai), CC BY 4.0; Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.
Features and parameters
Compare modelsNeither company publishes feature facts for these models.
Aliases
All aliasesNo aliases point at either model.
On cloud platforms
All platform dates| Model | Platform | Platform ID | Shutdown | Time left |
|---|---|---|---|---|
| grok-4.3 | Amazon Bedrock | xai.grok-4.3 | not before Jun 15, 2027Active |
Read daily from each platform's own pages. The status above uses each company's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.
Checklist
- Change the model string from
grok-4.3togrok-4.5. - Re-check costs: grok-4.5 costs more than grok-4.3 (input +60%, output +140%).
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: grok-4.3, grok-4.5.