| Signal | Gemini 2.5 Flash Lite | Delta | GPT-5.1-Codex-Max |
|---|---|---|---|
Capabilities | 83 | -17 | |
Pricing | 0 | -10 | |
Context window size | 96 | +7 | |
Recency | 90 | -10 | |
Output Capacity | 80 | -5 | |
| Overall Result | 1 wins | of 5 | 4 wins |
0
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OpenAI
Gemini 2.5 Flash Lite saves you $595.00/month
That's $7140.00/year compared to GPT-5.1-Codex-Max at your current usage level of 100K calls/month.
| Metric | Gemini 2.5 Flash Lite | GPT-5.1-Codex-Max | Winner |
|---|---|---|---|
| Overall Score | 87 | 96 | GPT-5.1-Codex-Max |
| Rank | #47 | #12 | GPT-5.1-Codex-Max |
| Quality Rank | #47 | #12 | GPT-5.1-Codex-Max |
| Adoption Rank | #47 | #12 | GPT-5.1-Codex-Max |
| Parameters | -- | -- | -- |
| Context Window | 1049K | 400K | Gemini 2.5 Flash Lite |
| Pricing | $0.10/$0.40/M | $1.25/$10.00/M | -- |
| Signal Scores | |||
| Capabilities | 83 | 100 | GPT-5.1-Codex-Max |
| Pricing | 0 | 10 | GPT-5.1-Codex-Max |
| Context window size | 96 | 89 | Gemini 2.5 Flash Lite |
| Recency | 90 | 100 | GPT-5.1-Codex-Max |
| Output Capacity | 80 | 85 | GPT-5.1-Codex-Max |
Our composite score (0–100) combines six weighted signals: benchmark performance (25%), pricing efficiency (25%), context window size (15%), model recency (15%), output capacity (10%), and capability versatility (10%). Here's what the scores mean for these two models:
Scores 87/100 (rank #47), placing it in the top 84% of all 290 models tracked.
Scores 96/100 (rank #12), placing it in the top 96% of all 290 models tracked.
GPT-5.1-Codex-Max has a 9-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.
Gemini 2.5 Flash Lite offers 96% better value per quality point. At 1M tokens/day, you'd spend $7.50/month with Gemini 2.5 Flash Lite vs $168.75/month with GPT-5.1-Codex-Max — a $161.25 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Higher benchmark score (0/100) indicates stronger performance on coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Faster response time (speed score 0/100) is critical for user-facing chat. Gemini 2.5 Flash Lite also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.40/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (96/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input — can analyze screenshots, diagrams, photos, and scanned documents directly
GPT-5.1-Codex-Max has a moderate advantage with a 8.900000000000006-point lead in composite score. It wins on more signal dimensions, but Gemini 2.5 Flash Lite has specific strengths that could make it the better choice for certain workflows.
Best for Quality
Gemini 2.5 Flash Lite
Marginally better benchmark scores; both are excellent
Best for Cost
Gemini 2.5 Flash Lite
96% lower pricing; better value at scale
Best for Reliability
Gemini 2.5 Flash Lite
Higher uptime and faster response speeds
Best for Prototyping
Gemini 2.5 Flash Lite
Stronger community support and better developer experience
Best for Production
Gemini 2.5 Flash Lite
Wider enterprise adoption and proven at scale
by Google
| Capability | Gemini 2.5 Flash Lite | GPT-5.1-Codex-Max |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
OpenAI
Gemini 2.5 Flash Lite saves you $13.59/month
That's 95% cheaper than GPT-5.1-Codex-Max at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Gemini 2.5 Flash Lite | GPT-5.1-Codex-Max |
|---|---|---|
| Context Window | 1.0M | 400K |
| Max Output Tokens | 65,535 | 128,000 |
| Open Source | No | No |
| Created | Jul 22, 2025 | Dec 4, 2025 |
GPT-5.1-Codex-Max scores 96/100 (rank #12) compared to Gemini 2.5 Flash Lite's 87/100 (rank #47), giving it a 9-point advantage. GPT-5.1-Codex-Max is the stronger overall choice, though Gemini 2.5 Flash Lite may excel in specific areas like cost efficiency.
Gemini 2.5 Flash Lite is ranked #47 and GPT-5.1-Codex-Max is ranked #12 out of 290+ AI models. Rankings use a composite score combining benchmark performance (25%), pricing (25%), context window (15%), recency (15%), output capacity (10%), and versatility (10%). Scores update hourly.
Gemini 2.5 Flash Lite is cheaper at $0.40/M output tokens vs GPT-5.1-Codex-Max's $10.00/M output tokens — 25.0x more expensive. Input token pricing: Gemini 2.5 Flash Lite at $0.10/M vs GPT-5.1-Codex-Max at $1.25/M.
Gemini 2.5 Flash Lite has a larger context window of 1,048,576 tokens compared to GPT-5.1-Codex-Max's 400,000 tokens. A larger context window means the model can process longer documents and conversations.