Gemini 2.0 Flash vs GPT-5.4
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Gemini 2.0 Flash and GPT-5.4.
Gemini 2.0 Flash
Gemini 2.0 Flash is Google's previous-generation fast, cost-efficient multimodal model, offering a compelling balance of speed, capability, and price. It supports text, image, and audio inputs with native multimodal understanding, making it well-suited for high-volume classification, real-time content moderation, and data extraction pipelines. Gemini 2.0 Flash introduced Google's context caching feature, significantly reducing costs for repeated document processing. While the 3.x series has since succeeded it, Gemini 2.0 Flash remains a popular cost-optimized choice for teams with established Vertex AI workflows.
GPT-5.4
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
Technical Specifications
| Specification | Gemini 2.0 Flash | GPT-5.4 |
|---|---|---|
| Provider | OpenAI | |
| Context Window | 1,048,576 tokens | 1,050,000 tokens |
| Agent Suitability | 80/100 | N/A |
| Time to First Token (TTFT) | 180 ms | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | beta |
| API Available | Yes | Yes |
| Released Date | 2025-02-05 | 2026-03-05 |
API Pricing Comparison
Input Price per Million Tokens
Gemini 2.0 Flash
$0.10
GPT-5.4
$2.50
Output Price per Million Tokens
Gemini 2.0 Flash
$0.40
GPT-5.4
$15.00
Want to test both models live?
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Gemini 2.0 Flash Quirks & Gotchas
- ▸Context caching via Vertex AI — up to 75% cost reduction for repeated prompts
- ▸Legacy model — migrate to Gemini 3.1 Flash for improved accuracy
GPT-5.4 Quirks & Gotchas
No developer gotchas reported.