Gemini 2.5 Flash Lite vs Grok 4.3 (Comparative Analysis)
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Comparative Analysis: Gemini 2.5 Flash Lite vs. Grok 4.3
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Overview
Gemini 2.5 Flash Lite was released 9 months before Grok 4.3.
 Gemini 2.5 Flash Lite |  Grok 4.3 | |
|---|---|---|
Model Provider The organization behind this AI's development | Google | XAI |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 1M tokens |
Output Token Limit Maximum output tokens this model can generate at once | 65.5K tokens | Not specified tokens |
Release Date When this model first became publicly available | July 22, 2025 1 year ago July 22nd, 2025 | April 30, 2026 2 months ago April 30th, 2026 |
Knowledge Cutoff Latest training-data date reported by the provider | January 31, 2025 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Gemini 2.5 Flash Lite | Grok 4.3 | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image📁File🎵Audio🎬Video | 📝Text🖼️Image📁File |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Enabled by defaultEffort: High, Medium, Low, NoneDefault: Low |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Gemini | Grok |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation |
Pricing
Gemini 2.5 Flash Lite is roughly 0.08x less expensive compared to Grok 4.3 for input tokens and roughly 0.2x less expensive for output tokens.
| Gemini 2.5 Flash Lite | Grok 4.3 | |
|---|---|---|
Short Context Pricing Base rates before a long-context threshold applies | ||
Input Token Cost Cost per million input tokens | $0.10 per million tokens | $1.25 per million tokens |
Output Token Cost Cost per million output tokens | $0.40 per million tokens | $2.50 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.014 per search | $0.005 per search |
Cache Read Cost Cost to reuse cached input tokens | $0.01 per million tokens | $0.20 per million tokens |
Cache Write Cost Cost to write input tokens to the cache | $0.08 per million tokens | Not specified |
Reasoning Token Cost Cost for internal reasoning tokens | $0.40 per million tokens | Not specified |
Image Input Cost Additional cost for each image input | $0.0000001 per image | Not specified |
Audio Input Cost Additional cost for audio input | $0.0000003 per unit | Not specified |
Audio Cache Cost Cost to reuse cached audio input tokens | $0.03 per million tokens | Not specified |
Long Context Pricing Rates for prompts with 200,000 or more tokens | ||
Input Token Cost Long-context input cost per million tokens | Not specified | $2.50 per million tokens |
Output Token Cost Long-context output cost per million tokens | Not specified | $5.00 per million tokens |
Cache Read Cost Long-context cache read cost per million tokens | Not specified | $0.40 per million tokens |
Benchmarks
Compare relevant benchmarks between Gemini 2.5 Flash Lite and Grok 4.3.
| Gemini 2.5 Flash Lite | Grok 4.3 | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | Benchmark not available. | 37.6 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | Benchmark not available. | 42.2 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | Benchmark not available. | 24.1 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | Benchmark not available. | 1,235 Elo (#38 in Game Dev (49.5% win rate)) |
At a Glance
Quick overview of what makes Gemini 2.5 Flash Lite and Grok 4.3 unique.
Gemini 2.5 Flash Lite by Google understands both text and images, handles audio, analyzes video, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Very affordable at $0.10/M input and $0.40/M output tokens. Released July 22nd, 2025.Grok 4.3 by XAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Reasonably priced at $1.25/M input and $2.50/M output tokens. Released April 30th, 2026.Explore More Comparisons
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