Gemini 3.5 Flash vs Grok 4.3: Release Comparison
Comparison of the Gemini 3.5 Flash and Grok 4.3 releases: 3 and 4 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 7 models.
- For intelligence, Gemini 3.5 Flash scores highest: Gemini 3.5 Flash (medium) at 34, against Grok 4.3 (high) at 25 for Grok 4.3.
- For output speed, Gemini 3.5 Flash is fastest: Gemini 3.5 Flash (high) at 219 t/s, against Grok 4.3 (high) at 114 t/s for Grok 4.3.
- For cost per task, Grok 4.3 is cheapest: Grok 4.3 (Non-reasoning) at $0.14, against Gemini 3.5 Flash (high) at $1.56 for Gemini 3.5 Flash.
Releases compared
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Intelligence Index Task
Cost
Cost per Intelligence Index Task
Speed & Latency
Output Speed
Capability Scores
Capability Indices
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2, AA-Briefcase, Terminal-Bench 4.0 · Higher is better
Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2, AA-Briefcase, AA-LCR v1.1 · Higher is better
Further details
Input modality | Output modality | Weights | Provider Benchmarks | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gemini 3.5 Flash (medium) |  Google | 34 | - | - | - | - | - | - | - | $1.3 | $1.50 | $9.00 | $0.15 | - | - | - | - | 214 | 13.60s | 13.60s | 15.94s | - | - | 1M | May 2026 | - | Yes | Supports: text, image, speech, and video | Supports: text | Not available | - | | |
| Gemini 3.5 Flash (high) | Google | 33 | 39 | 38 | 45 | 35 | 35 | 46 | $1.56 | $1.3 | $1.50 | $9.00 | $0.15 | $2,172 | 55k | 36k | 120M | 219 | 16.90s | 16.90s | 19.19s | 230.55s | - | 1M | May 2026 | - | Yes | Supports: text, image, speech, and video | Supports: text | Not available | - | | |
| Grok 4.3 (high) |  SpaceXAI | 25 | 28 | 18 | 33 | 27 | 31 | 41 | $0.17 | $0.6 | $1.25 | $2.50 | $0.20 | $332 | 18k | 11k | 87M | 114 | 18.32s | 18.32s | 22.71s | 155.89s | - | 1M | Apr 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |   | |
| Grok 4.3 (medium) | SpaceXAI | 25 | - | - | - | - | - | - | - | $0.6 | $1.25 | $2.50 | $0.20 | - | - | - | - | 108 | 12.57s | 12.57s | 17.21s | - | - | 1M | Apr 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Grok 4.3 (low) | SpaceXAI | 24 | - | - | - | - | - | - | - | $0.6 | $1.25 | $2.50 | $0.20 | - | - | - | - | 102 | 4.55s | 4.55s | 9.43s | - | - | 1M | Apr 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - | | |
| Gemini 3.5 Flash (minimal) | Google | 24 | - | - | - | - | - | - | - | $1.3 | $1.50 | $9.00 | $0.15 | - | - | - | - | 209 | 0.84s | 0.84s | 3.24s | - | - | 1M | May 2026 | - | No | Supports: text, image, speech, and video | Supports: text | Not available | - | | |
| Grok 4.3 (Non-reasoning) | SpaceXAI | 15 | 16 | 14 | 19 | - | 15 | 21 | $0.14 | $0.6 | $1.25 | $2.50 | $0.20 | $203 | 9k | 0 | 12M | 108 | 0.70s | 0.70s | 5.32s | 86.55s | - | 1M | Apr 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |