Gemma 4 31B vs GPT-5.3-Codex
| Signal | Gemma 4 31B | Delta | GPT-5.3-Codex |
|---|---|---|---|
Capabilities | 83 | -17 | |
Benchmarks | 86 | -1 | |
Pricing | 100 | +14 | |
Context window size | 86 | -3 | |
Recency | 100 | -- | |
Output Capacity | 90 | +5 | |
| Overall Result | 2 wins | of 6 | 3 wins |
Score History
80.5
current score
GPT-5.3-Codex
right now
90.5
current score
Gemma 4 31B
GPT-5.3-Codex
OpenAI
Gemma 4 31B saves you $848.00/month
That's $10176.00/year compared to GPT-5.3-Codex at your current usage level of 100K calls/month.
| Metric | Gemma 4 31B | GPT-5.3-Codex | Winner |
|---|---|---|---|
| Overall Score | 81 | 91 | GPT-5.3-Codex |
| Rank | #83 | #23 | GPT-5.3-Codex |
| Quality Rank | #83 | #23 | GPT-5.3-Codex |
| Adoption Rank | #83 | #23 | GPT-5.3-Codex |
| Parameters | 31B | -- | -- |
| Context Window | 262K | 400K | GPT-5.3-Codex |
| Pricing | $0.10/$0.34/M | $1.75/$14.00/M | -- |
| Signal Scores | |||
| Capabilities | 83 | 100 | GPT-5.3-Codex |
| Benchmarks | 86 | 88 | GPT-5.3-Codex |
| Pricing | 100 | 86 | Gemma 4 31B |
| Context window size | 86 | 89 | GPT-5.3-Codex |
| Recency | 100 | 100 | Gemma 4 31B |
| Output Capacity | 90 | 85 | Gemma 4 31B |
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.
Scores 81/100 (rank #83), placing it in the top 72% of all 290 models tracked.
Scores 91/100 (rank #23), placing it in the top 92% of all 290 models tracked.
GPT-5.3-Codex has a 10-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.
Choose Gemma 4 31B when you need:
- High-volume production workloads where API costs must be minimized
- Step-by-step reasoning and chain-of-thought problem solving
- Self-hosted deployments where you need full control over the model
Choose GPT-5.3-Codex when you need:
- Processing long documents or large codebases (400K token context)
- Step-by-step reasoning and chain-of-thought problem solving
Gemma 4 31B offers 97% better value per quality point. At 1M tokens/day, you'd spend $6.60/month with Gemma 4 31B vs $236.25/month with GPT-5.3-Codex - a $229.65 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
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Gemma 4 31B also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (400K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.34/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (91/100) 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-5.3-Codex has a moderate advantage with a 10-point lead in composite score. It wins on more signal dimensions, but Gemma 4 31B has specific strengths that could make it the better choice for certain workflows.
By Use Case
Best for Quality
Gemma 4 31B
Marginally better benchmark scores; both are excellent
Best for Cost
Gemma 4 31B
97% lower pricing; better value at scale
Best for Reliability
Gemma 4 31B
Higher uptime and faster response speeds
Best for Prototyping
Gemma 4 31B
Stronger community support and better developer experience
Best for Production
Gemma 4 31B
Wider enterprise adoption and proven at scale
by Google
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Cost - 97% 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
| Capability | Gemma 4 31B | GPT-5.3-Codex |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
Gemma 4 31B
GPT-5.3-Codex
OpenAI
Gemma 4 31B saves you $19.36/month
That's 97% cheaper than GPT-5.3-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.
| Parameter | Gemma 4 31B | GPT-5.3-Codex |
|---|---|---|
| Context Window | 262K | 400K |
| Max Output Tokens | 262,144 | 128,000 |
| Open Source | Yes | No |
| Created | Apr 2, 2026 | Feb 24, 2026 |