Grok 4.5
- Context
- 500K
- 500K max output
- Input price
- $2.00
- per 1M tokens · xAI API
- Output price
- $6.00
- per 1M tokens
- Epoch Capabilities Index
- 154
- #32 of 71 listed
- LMArena Text
- 1,465
- #28 of 79 listed
Where to run it
1 offering · prices as listed| Meter | Tier | Price |
|---|---|---|
| Input | Standard | $2.00 / 1M tokens |
| Prompts over 200K tokens | $4.00 / 1M tokens | |
| Output | Standard | $6.00 / 1M tokens |
| Prompts over 200K tokens | $12.00 / 1M tokens | |
| Cache read | Standard | $0.30 / 1M tokens |
| Prompts over 200K tokens | $0.60 / 1M tokens | |
Vendor-reported scores
Published by xAI, under the conditions it states| Benchmark | Setting | Score |
|---|---|---|
| Terminal-Bench 2.1 | — | 83.3% |
| SWE-bench Pro | resolve rate | 64.7% |
Cited scores
From third-party leaderboards, not measured by us- Epoch Capabilities Index 154
#32 of 71 listed models · CI 152.3–156.1
Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Sep 26, 2026 · changes we made
- LMArena Text 1,465
#28 of 79 listed models · CI 1,461–1,470 · 37,535 votes
LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Sep 25, 2026 · changes we made
- Epoch AI · FrontierMath Tiers 1–3 57.2%
#31 of 56 listed models · high effort · ±2.94
Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Sep 26, 2026 · changes we made
- Epoch AI · GPQA Diamond 93.4%
#10 of 64 listed models · high effort · ±1.43
Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Sep 26, 2026 · changes we made
- LMArena Text · Chinese 1,506
#32 of 79 listed models · CI 1,494–1,517 · 2,896 votes
LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Sep 25, 2026 · changes we made
- LMArena Text · Coding 1,513
#32 of 79 listed models · CI 1,506–1,520 · 10,550 votes
LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Sep 25, 2026 · changes we made
- LMArena Vision 1,289
#17 of 49 listed models · CI 1,281–1,297 · 8,355 votes
LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Sep 13, 2026 · changes we made