xAI model product
Grok 4.5
5 is SpaceXAI's frontier model for coding, agentic tasks, and knowledge work.
Updated Aug 17, 2026. Default version: Grok 4.5
LLMBoard Score80.3Grok 4.5
Coverage60%10 benchmark families
Context window500KTokens
Official input price$2xAI API
Grok 4.5 Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Grok 4.5 Benchmark Results
Benchmark scores for Grok 4.5.
Sort by
Benchmark | Score | Rank | Participants | Percentile | Evidence | Evaluated |
|---|
| BenchmarkAA-Omniscience Index | Score126 points | Rank01 | Participants2 | Percentile100.0% | EvidenceB | Evaluated |
| BenchmarkAutomationBench-AA | Score51.4% | Rank01 | Participants1 | Percentile100.0% | EvidenceB | Evaluated |
| BenchmarkDeepSWE 1.0 | Score62.0% | Rank01 | Participants1 | Percentile100.0% | EvidenceC | Evaluated |
| BenchmarkOmniScience (non-hallucination rate) | Score46.0% | Rank01 | Participants1 | Percentile100.0% | EvidenceB | Evaluated |
| BenchmarkTau3 Banking | Score33.0% | Rank01 | Participants7 | Percentile100.0% | EvidenceB | Evaluated |
| BenchmarkOmniScience | Score52.0% | Rank02 | Participants3 | Percentile50.0% | EvidenceB | Evaluated |
| BenchmarkSWE-Marathon | Score29.0% | Rank03 | Participants4 | Percentile33.3% | EvidenceC | Evaluated |
| BenchmarkArtificial Analysis | Score54.0% | Rank04 | Participants7 | Percentile50.0% | EvidenceB | Evaluated |
| BenchmarkSWE-Bench Pro | Score64.7% | Rank05 | Participants50 | Percentile91.8% | EvidenceC | Evaluated |
| BenchmarkDeepSWE | Score53.0% | Rank07 | Participants11 | Percentile40.0% | EvidenceC | Evaluated |
| BenchmarkFrontierCode 1.1 | Score42.4% | Rank08 | Participants16 | Percentile53.3% | EvidenceB | Evaluated |
| BenchmarkGPQA | Score93.0% | Rank09 | Participants239 | Percentile96.6% | EvidenceB | Evaluated |
| BenchmarkTerminal-Bench 2.1 | Score83.3% | Rank10 | Participants28 | Percentile66.7% | EvidenceC | Evaluated |
| BenchmarkDeepSWE 1.1 | Score54.0% | Rank15 | Participants25 | Percentile41.7% | EvidenceB | Evaluated |
Grok 4.5 Arena Results
Preference and agent-evaluation results for the default version.
Sort by
Arena | Category | Rank | Rating / score | Votes | Observations | Result date |
|---|
| Arenaagent tool hallucination | Categoryoverall | Rank05 | Rating / score0.0 | VotesN/A | Observations1.3M | Result date |
| Arenaagent bash recovery steps | Categoryoverall | Rank10 | Rating / score0.1 | VotesN/A | Observations25.9K | Result date |
| Arenaagent steerability | Categoryoverall | Rank13 | Rating / score0.1 | VotesN/A | Observations25.9K | Result date |
| Arenavision style control | Categoryoverall | Rank13 | Rating / score1285.0 | Votes3,871 | ObservationsN/A | Result date |
| Arenaagent task outcome explicit | Categoryoverall | Rank14 | Rating / score0.1 | VotesN/A | Observations20.1K | Result date |
| Arenawebdev | Categoryoverall | Rank15 | Rating / score1554.9 | Votes5,721 | ObservationsN/A | Result date |
| Arenaagent | Categoryoverall | Rank16 | Rating / score0.1 | VotesN/A | Observations1.4M | Result date |
| Arenavision | Categoryoverall | Rank17 | Rating / score1295.4 | Votes3,871 | ObservationsN/A | Result date |
| Arenaagent praise complaint | Categoryoverall | Rank18 | Rating / score0.1 | VotesN/A | Observations6.4K | Result date |
| Arenadocument | Categoryoverall | Rank20 | Rating / score1453.7 | Votes2,435 | ObservationsN/A | Result date |
| Arenadocument style control | Categoryoverall | Rank21 | Rating / score1462.0 | Votes2,435 | ObservationsN/A | Result date |
| Arenatext factuality | Categoryoverall | Rank24 | Rating / score1466.8 | Votes17,714 | ObservationsN/A | Result date |
| Arenatext style control | Categoryoverall | Rank35 | Rating / score1468.4 | Votes17,738 | ObservationsN/A | Result date |
| Arenatext | Categoryoverall | Rank38 | Rating / score1450.7 | Votes17,738 | ObservationsN/A | Result date |
Grok 4.5 Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- $2 input, $6 output per 1M
- Official provider
- xAI
- Lowest third-party
- From $2 input, $6 output per 1M via NanoGPT
- Tracked offerings
- 21
Sort by
Provider | Provider model ID | Region | Input / 1M | Output / 1M | Context | Updated |
|---|
| ProviderKenari | Provider model IDgrok-4-5 | Regionglobal | Input / 1MN/A | Output / 1MN/A | Context500K | Updated |
| ProviderNanoGPT | Provider model IDx-ai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderImpossibl | Provider model IDxai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderOpenRouter | Provider model IDx-ai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderDaoXE | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderCrossModel | Provider model IDx-ai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderOpenCode Go | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderxAI | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderMerge Gateway | Provider model IDxai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderZenMux | Provider model IDx-ai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderOpenCode Zen | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderRequesty | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderAIHubMix | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context1M | Updated |
| ProviderVercel AI Gateway | Provider model IDxai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderEden AI | Provider model IDxai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderLLM Gateway | Provider model IDgrok-4-5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderGitHub Copilot | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderKilo Gateway | Provider model IDx-ai/grok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderPioneer | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderAbacus | Provider model IDgrok-4.5 | Regionglobal | Input / 1M$2 | Output / 1M$6 | Context500K | Updated |
| ProviderVenice AI | Provider model IDgrok-4-5 | Regionglobal | Input / 1M$2.27 | Output / 1M$6.8 | Context500K | Updated |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Grok 4.5 Runtime Performance
Provider-specific output speed and catalog latency for Grok 4.5. Runtime does not affect the capability score.
Sort by
Provider | Output Speed | Catalog Latency | Max Input | Max Output | Updated |
|---|
| ProviderxAI | Output Speed4.268 tok/s | Catalog Latency1.989 s | Max Input500K | Max OutputN/A | Updated |
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Grok 4.5 Specifications
Technical details for the model's default version.
- Version
- Grok 4.5
- Released
- Jul 16, 2026
- Knowledge cutoff
- Feb 1, 2026
- Parameters
- N/A
- Context window
- 500K
- Max output
- 500K
- Inputs
- image, text
- Outputs
- text
- Open weights
- No
- License
- Proprietary
Grok 4.5 Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
Sort by
Version | Released | LLMBoard | Parameters | Context | Max output | Open weights | License |
|---|
| VersionGrok 4.5 | Released | LLMBoard80.3 | ParametersN/A | Context500K | Max output500K | Open weightsNo | LicenseProprietary |
Grok 4.5 vs nearby models
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What is Grok 4.5?
Key information about Grok 4.5 and its available data.
5 is SpaceXAI's frontier model for coding, agentic tasks, and knowledge work. Trained alongside Cursor across tens of thousands of NVIDIA GB300 GPUs, it uses large-scale reinforcement learning focused on multi-step software engineering and other technical work.
The model supports text and image inputs, reasoning, function calling, structured outputs, and a 500K-token context window, and is served at 80 tokens per second.
Data as of 2026-08-17.
FAQ
Common questions about Grok 4.5.
When was Grok 4.5 released?
Grok 4.5's default version was released on Jul 16, 2026.
How much does Grok 4.5 cost?
Grok 4.5's official API price is $2 per million input tokens and $6 per million output tokens via xAI. The lowest tracked third-party offer starts at $2 input and $6 output via NanoGPT.
Who created Grok 4.5?
Grok 4.5 was created by xAI.
What is the context window for Grok 4.5?
The default version has a 500K token context window.
Is Grok 4.5 open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Grok 4.5?
21 provider offerings are linked to the default version.
What models should I compare Grok 4.5 with?
Nearby ranked alternatives include GPT-5.5, Claude Sonnet 5, Muse Spark 1.2.