Claude 4 Sonnet (Reasoning) vs. Gemini 1.5 Flash-8B
Comparison between Claude 4 Sonnet (Reasoning) and Gemini 1.5 Flash-8B across intelligence, price, speed, context window and more.
For details relating to our methodology, see our Methodology page.
| Intelligence | |||
|---|---|---|---|
| Intelligence Index | 19* | 6* | |
| GDPval-AA v2.1 | 695 | ||
| Humanity's Last Exam | 11% | 5% | |
| CritPt | 0% | ||
| AA-Omniscience | 0 | ||
| AA-LCR v1.1 | 70% | ||
| Cost | |||
| Token Use | |||
| Performance | |||
| Technical specifications | |||
| Context Window | 1000k tokens~1,500 A4 pages of size 12 Arial font | 1049k tokens~1,573 A4 pages of size 12 Arial font | |
| Release Date | May 2025 | October 2024 | |
| Knowledge Cutoff | March 2025 | August 2024 | |
| Total parameters | 8B | ||
| Reasoning | Yes | No | |
| Input modality | Supports: text and image | Supports: text, image, speech, and video | |
| Output modality | Supports: text | Supports: text | |
| Open Source (Weights) | No | No | |
* Estimated
Speed
Intelligence
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Evaluations
Agentic knowledge work, (Elo-500)/2000
Agentic real-world work tasks, (Elo-500)/2000
Agentic SaaS workflows
Agentic coding & terminal use
Coding
Reasoning & knowledge
Professional document reasoning, All-pass
Physics reasoning
Knowledge
1 - hallucination rate
Long context reasoning
Legal agentic work, Hallucination-Gated All-Pass Rate
Agentic business operations
Agentic scientific research workflows in a terminal
Quantitative analysis on spreadsheets & documents
Kubernetes incident root-cause analysis
Visual reasoning
Medical long context reasoning
AA-Omniscience
AA-Omniscience Index
Intelligence Index Comparisons
Intelligence Index vs. Cost per Intelligence Index Task
Cost per Task (USD, Log Scale)
Cost
Cost per Intelligence Index Task
Cost to Run Artificial Analysis Intelligence Index
Pricing: Cache Hit, Input, and Output
Context Window
Context Window
Frequently Asked Questions
Claude 4 Sonnet (Reasoning) is more intelligent. Claude 4 Sonnet (Reasoning) scores 19 (estimated), compared with Gemini 1.5 Flash-8B at 6 (estimated) on the Artificial Analysis Intelligence Index.
Both models have a context window of 1.0M tokens.