Grok 4.5
Grok 4.5 has been xAI’s current flagship since July 2026, with native real-time access to web and X data, a 500,000-token context window, and multimodal text and image input. Reasoning runs server-side at all times and is controlled via configurable reasoning effort levels, with no visible chain-of-thought tags in the response text. Function calling, structured outputs, and prompt caching round out the profile for coding and agentic workflows.
- Proprietary
- Frontier
- xAI
- Text
- Vision
- Interactive
Sovereign Risk: MEDIUM xAI is a US company subject to the CLOUD Act. The operational risk lies not in the distribution of weights (proprietary, not public) but in the use of the cloud API: data is processed server-side, with a default retention period of 30 days unless a zero-data-retention option is activated for enterprise accounts.[web:590]
Key metrics
Score · Latency · Cost · Quality
- Total Score Silver
- 73.85
- Routine
- 45.27
- Reasoning
- 28.58
- LLM Judge Avg
- 3.66 / 5
- 100 Coverage
- Avg Task Duration
- 21.9s
- Interactive
- Token Rate
- 25.65tok/s
- Output Rate
- P95 Latency
- 53.37s
- Top 5 %
- Total Tokens
- 86600
- Output Volume
- Cost per 1K
- $0.006
- USD / 1K Requests
- Benchmark Cost
- $0.52
- Total · 86600 tok
Benchmark modules
10 modules · weighted · vs. model median & top performer
Token efficiency & latency
Consumption per module vs. model median
Token consumption per module
Performance profile
Key metrics – legend
Score
- Total Score
- Overall score derived from Routine and Reasoning scores. Basis for the fleet rank and tier assignment (Gold / Silver / Bronze).
- Routine
- Score for standard tasks: code generation, text transformation, structured outputs. Weighted by task complexity.
- Reasoning
- Score for analytical and logical tasks: multi-step problem solving, mathematical reasoning, structured argumentation.
- Rank
- Position in the fleet comparison, sorted by Total Score. Refers to the snapshot at the time of testing.
LLM Judge
- LLM Judge Ø
- Average quality rating by an independent judge model on a scale of 1–5.
- Coverage
- Share of tasks for which a judge rating is available. 100% means all responses were evaluated.
Latency & speed
- Avg. Task Duration
- Average time per task from the first to the last token of the response, measured across all benchmark tasks.
- Token Rate
- Output speed in tokens per second. Relevant for interactive applications and real-time streaming.
- P95 Latency
- 95th percentile of response times — shows outliers. Lower values mean fewer long wait times in edge cases.
Cost
- Cost per 1K
- API price per 1,000 output tokens in US dollars. Basis for cost calculation in production use.
- Benchmark Cost
- Total cost for the complete benchmark run of this model.