SpaceXAI's Grok 4.5 model for coding, agentic tasks, and knowledge work.
xAI recommends prompt_cache_key or x-grok-conv-id for long conversations; otherwise requests may land on cache-cold servers and incur full input charges.
ActionCost evaluation should include cache-hit rates and compaction strategy for long agent loops.
Open sourceIn a July 14 r/grok thread, one user said a routine JavaScript coding session through Grok CLI reached the SuperGrok 4.5 weekly allowance in roughly two hours. The same reply praised speed but reported needing more prompts and questioned plan transparency. This single public thread concerns the consumer subscription/Grok CLI experience, not xAI API limits or a representative sample.
ActionValidate subscription allowances and prompt counts on real workflows; plan production capacity against a pinned API model and documented API limits.
Open sourceA recent r/grok post alleges more frequent incorrect information, with replies also reporting weaker writing quality. A single thread is only a lead for validation.
ActionRun regression tests on real workloads; do not reject the model from one community thread alone.
Open sourceThe thread alleged a rollback or difficulty confirming the served model, but model self-identification and one user's inference do not establish current routing. No sufficient evidence was found on July 15 to keep it as a current risk, so it is historical.
ActionFor serious evaluations, continue to pin API model IDs and record response metadata.
Open source| Company | xAI |
|---|---|
| Release | 2026-07-08 |
| Release type | Model release |
| Parameters | Not disclosed |
| Architecture | Not disclosed |
| Context | 500,000 |
| Input modalities | text / image |
| Output modalities | text |
| Tool use / function calling | Confirmed: Tool use, Function calling |
| Structured output / reasoning | Confirmed: Reasoning |
| Vision / audio / video | Confirmed: Vision; Not shown: Audio, Video |
| Open weights / License | No open weights currently / weight license not disclosed xai-grok-4-5-current · License not applicable |
| Vendor API | Available grok-4.5 | SpaceXAI Docsxai-grok-4-5-current · 2026-07-08 |
| OpenRouter | OpenRouter listed |
| Pricing | Official · 2026-07-08: $2 / $6 OpenRouter · 2026-08-11: $2 / $6 input / output, per 1M tokens |
| Benchmark | No reliable public source |
| Public signals | No reliable public source |
| Use cases | coding and review / Agentic tasks / Knowledge work / Long-running tool workflows |
| Claim evidence | Release event / Model specificationsgrok-4.5 | SpaceXAI Docsgrok-4.5 · 2026-07-08 · Grok 4.5 · grok-4.5 OpenRouter context / capabilities / pricingOpenRouter public models APIx-ai/grok-4.5 · 2026-08-11T06:28:09.895Z |
| OpenRouter | OpenRouter listed |
|---|---|
| OpenRouter listing | x-ai/grok-4.5 |
| Mapped version | grok-4.5 xai-grok-4-5-current |
| Pricing | Official · 2026-07-08: $2 / $6 OpenRouter · 2026-08-11: $2 / $6 input / output, per 1M tokens |
| Context | 500000 |
| Speed/Latency | No reliable public source |
| Snapshot time | 2026-08-11T06:28:09.895Z |
| Source | View source |
| Source | Model / version | Metric | Rank | Value | Checked | Link |
|---|---|---|---|---|---|---|
| OpenRouter | SpaceXAI: Grok 4.5 0708 xai-grok-4-5-current | Weekly token usage on OpenRouter public rankings API | 32 | 329,756,363,356 tokens | 2026-08-11 | View source |
OpenRouter weekly prompt-plus-completion token usage only; this is not a model-quality or whole-market ranking.