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Gemini 3.5 Flash Lite (batch) vs GPT-5.2-Codex

Signal-by-Signal Comparison
SignalGemini 3.5 Flash Lite (batch)DeltaGPT-5.2-Codex
Capabilities
100
--
100
Benchmarks
75
-15
89
Pricing
99
+13
86
Context window size
96
+7
89
Recency
100
+5
95
Output Capacity
80
-5
85
Overall Result
3 wins
of 6
2 wins
Gemini 3.5 Flash Lite (batch) wins 3 of 6 signals

Score History

Score History (25 data points)
Gemini 3.5 Flash Lite (batch)GPT-5.2-Codex
Gemini 3.5 Flash Lite (batch)

76.9

current score

Leader

GPT-5.2-Codex

right now

GPT-5.2-Codex

90.5

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

Gemini 3.5 Flash Lite (batch)

Google

Best Value
Per request$0.000775
Daily$2.58
Monthly$77.50
Annual$930.00

GPT-5.2-Codex

OpenAI

Per request$0.008750
Daily$29.17
Monthly$875.00
Annual$10500.00

Gemini 3.5 Flash Lite (batch) saves you $797.50/month

That's $9570.00/year compared to GPT-5.2-Codex at your current usage level of 100K calls/month.

91% cheaper
Choose Gemini 3.5 Flash Lite (batch) for cost optimization

Gemini 3.5 Flash Lite (batch) pricing:
Input:$0.15/M tokens
Output:$1.25/M tokens
GPT-5.2-Codex pricing:
Input:$1.75/M tokens
Output:$14.00/M tokens
Gemini 3.5 Flash Lite (batch)

Google

77

Composite Score

Winner
GPT-5.2-Codex

OpenAI

91

Composite Score

Signal-by-Signal Comparison
MetricGemini 3.5 Flash Lite (batch)GPT-5.2-CodexWinner
Overall Score
77
91
GPT-5.2-Codex
Rank#113#24
GPT-5.2-Codex
Quality Rank#113#24
GPT-5.2-Codex
Adoption Rank#113#24
GPT-5.2-Codex
Parameters------
Context Window1049K400K
Gemini 3.5 Flash Lite (batch)
Pricing$0.15/$1.25/M$1.75/$14.00/M--
Signal Scores
Capabilities
100
100
Gemini 3.5 Flash Lite (batch)
Benchmarks
75
89
GPT-5.2-Codex
Pricing
99
86
Gemini 3.5 Flash Lite (batch)
Context window size
96
89
Gemini 3.5 Flash Lite (batch)
Recency
100
95
Gemini 3.5 Flash Lite (batch)
Output Capacity
80
85
GPT-5.2-Codex
Benchmark Head-to-Head(11 benchmarks)
Gemini 3.5: 0GPT-5.2-Codex: 1
Gemini 3.5
GPT-5.2-Codex
Normalized 0-100%
MMLU
-93.5%
MMLU-Pro
-86%
GPQA Diamond
-87%
MATH-500
-94%
HumanEval
-97%
SWE-bench Verified
-78%
IFEval
-93%
BBH
-91.5%
Arena Elo
14591481
LiveBench
-77.5%
HLE
-37%
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

Gemini 3.5 Flash Lite (batch)Strong Performer

Scores 77/100 (rank #113), placing it in the top 61% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-5.2-CodexElite Tier

Scores 91/100 (rank #24), placing it in the top 92% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5.2-Codex has a 14-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Gemini 3.5 Flash Lite (batch) when you need:

  • High-volume production workloads where API costs must be minimized
  • Processing long documents or large codebases (1049K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose GPT-5.2-Codex when you need:

  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Gemini 3.5 Flash Lite (batch)Best Value
Input cost$0.15/M tokens
Output cost$1.25/M tokens
Cost per quality point$0.018
Est. monthly (1M tokens/day)$21.00
GPT-5.2-Codex
Input cost$1.75/M tokens
Output cost$14.00/M tokens
Cost per quality point$0.174
Est. monthly (1M tokens/day)$236.25

Gemini 3.5 Flash Lite (batch) offers 91% better value per quality point. At 1M tokens/day, you'd spend $21.00/month with Gemini 3.5 Flash Lite (batch) vs $236.25/month with GPT-5.2-Codex - a $215.25 monthly difference.

Latency & Speed
Gemini 3.5 Flash Lite (batch)Faster
Speed score0/100
GPT-5.2-Codex
Speed score0/100

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.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

Gemini 3.5 Flash Lite (batch)

Customer support chatbot

Suitable for user-facing chat with competitive response times. Gemini 3.5 Flash Lite (batch) also offers lower per-token costs for high-volume support

Gemini 3.5 Flash Lite (batch)

Long document analysis

Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass

Gemini 3.5 Flash Lite (batch)

Batch data extraction

Lower output pricing ($1.25/M) reduces costs when processing thousands of records daily

Gemini 3.5 Flash Lite (batch)

Creative writing & content

Higher overall composite score (91/100) correlates with better nuance, coherence, and style in long-form content

GPT-5.2-Codex

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Gemini 3.5 Flash Lite (batch)
Which Should You Choose?
Our recommendation:
GPT-5.2-Codex

GPT-5.2-Codex clearly outperforms Gemini 3.5 Flash Lite (batch) with a significant 13.599999999999994-point lead. For most general use cases, GPT-5.2-Codex is the stronger choice. However, Gemini 3.5 Flash Lite (batch) may still excel in niche scenarios.

by Google

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 91% lower pricing; better value at scale
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale
GPT-5.2-Codex
Recommended

by OpenAI

Consider for specialized use cases.

Capability Comparison
CapabilityGemini 3.5 Flash Lite (batch)GPT-5.2-Codex
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Gemini 3.5 Flash Lite (batch)

Google

Best Value
$1.77
estimated monthly cost

GPT-5.2-Codex

OpenAI

$19.95
estimated monthly cost

Gemini 3.5 Flash Lite (batch) saves you $18.18/month

That's 91% cheaper than GPT-5.2-Codex 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.

Parameters & Context
ParameterGemini 3.5 Flash Lite (batch)GPT-5.2-Codex
Context Window1.0M400K
Max Output Tokens65,536128,000
Open SourceNoNo
CreatedJul 21, 2026Jan 14, 2026
Last updated: 23m ago

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Gemini 3.5 Flash Lite (batch) vs GPT-5.2-Codex (2026) | LM Market Cap