Grok 4.5 vs Inkling Small
Grok 4.5 (xAI) and Inkling Small (Thinking Machines) compared on benchmarks, pricing, context window, and use-case rankings.
- Inkling Small is cheaper on input tokens — $0.58 vs $2.00 per 1M.
- Inkling Small has a larger context window (524K vs 500K tokens).
- Grok 4.5 ranks higher for coding (91th vs 71th percentile).
| Attribute | Grok 4.5 | Inkling Small |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 154 | — |
| Coding | 91 | 71 |
| Math | 85 | — |
| Reasoning & Knowledge | 70 | 69 |
| Agentic & Tools | 75 | — |
| Specifications | ||
| Developer | xAI | Thinking Machines |
| Family | Grok | — |
| Released | Jul 8, 2026 | Jul 30, 2026 |
| Parameters | — | — |
| Availability | API access | — |
| Context window | 500K | 524K |
| Price — $/M input | $2.00 | $0.58 |
| Price — $/M output | $6.00 | $1.44 |
| Inputs | text, image, file | text, image, audio |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 98% | — |
| APEX | 34% | — |
| ARC-AGI | 87% | — |
| ARC-AGI-2 | 53% | — |
| GPQA Diamond | 93% | 90% |
| Humanity's Last Exam | 40% | 32% |
| SciCode | 54% | 49% |
| SimpleBench | 70% | — |
| SimpleQA Verified | 54% | — |
| WebDev Arena | 1551 | — |
| WeirdML | 46% | — |
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Which is cheaper, Grok 4.5 or Inkling Small?
Inkling Small is cheaper on input tokens at $0.58 per million, versus $2.00 (representative OpenRouter pricing).
Which has a larger context window, Grok 4.5 or Inkling Small?
Inkling Small supports up to 524K tokens, compared with 500K for the other.
Which is better for coding, Grok 4.5 or Inkling Small?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Grok 4.5 ranks higher — 91th vs 71th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.