GPT-5.3 Chat vs Gemma 4 E4B IT
Gemma 4 E4B IT comes out ahead, 76 to 28 on our weighted score, and it is the cheaper option too.
OpenAIGPT-5.3 Chat
28/100- ECI—
- Price$1.75 / $14.00
- Context128K
- Our pick
GoogleGemma 4 E4B IT
76/100- ECI—
- Price$0.02 / $0.10
- Context131K
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Make it a three-way comparison.
Gemma 4 E4B IT is our pick
Gemma 4 E4B IT is the better all-round choice, scoring 76/100 against GPT-5.3 Chat (28). It leads on price and inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceGemma 4 E4B ITGemma 4 E4B IT $0.04 · GPT-5.3 Chat $4.81 per 1M tokens (3:1 blend)
- Longest contextGemma 4 E4B ITGemma 4 E4B IT 131,072 · GPT-5.3 Chat 128,000 tokens
- Widest inputsGemma 4 E4B ITGPT-5.3 Chat: Text, Images · Gemma 4 E4B IT: Text, Images, Audio
- Self-hostingGemma 4 E4B ITPublishes downloadable weights
| Measure | Weight | GPT-5.3 Chat | Gemma 4 E4B IT |
|---|---|---|---|
| Price | 50% | 17 | 100 |
| Inputs & features | 30% | 50 | 70 |
| Context window | 20% | 24 | 25 |
| Overall | 100% | 28/100 | 76/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | GPT-5.3 ChatOpenAI | Gemma 4 E4B ITGoogle |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $1.75 | $0.02 (best) |
| Output | $14.00 | $0.10 (best) |
| Cached input | — | — |
| Blended (3:1) | $4.81 | $0.04 (best) |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 4 providers | Median of 1 providers |
| Limits | ||
| Context window | 128,000 tokens | 131,072 tokens (best) |
| Max output | 16,384 tokens (best) | 8,192 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | Yes |
| PDFs | No | No |
| Audio | No | Yes |
| Video | No | No |
| Reasoning | No | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | No |
| Availability | ||
| Weights | Proprietary | Open |
| API model ID | — | — |
| API providers | 4 (best) | 2 |
| Released | Mar 3, 2026 | Apr 2, 2026 |
| Knowledge cutoff | Aug 31, 2025 | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- GPT-5.3 Chat$45.50
- Gemma 4 E4B IT$0.40
Which should you choose?
Which is better: GPT-5.3 Chat or Gemma 4 E4B IT?
Gemma 4 E4B IT is the better all-round choice, scoring 76/100 against GPT-5.3 Chat (28). It leads on price and inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, GPT-5.3 Chat or Gemma 4 E4B IT?
Gemma 4 E4B IT is cheaper at $0.02 input / $0.10 output per million tokens (median across 1 API provider). GPT-5.3 Chat costs $1.75 input / $14.00 output per million tokens (median across 4 API providers). At a typical mix of three input tokens to one output token, that is $0.04 per million tokens for Gemma 4 E4B IT versus $4.81 for GPT-5.3 Chat (120× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. GPT-5.3 Chat has not been scored yet and Gemma 4 E4B IT has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for GPT-5.3 Chat and Gemma 4 E4B IT yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.
Which has the bigger context window?
Gemma 4 E4B IT has the largest context window at 131,072 tokens, against 128,000 for GPT-5.3 Chat. Maximum output per response: GPT-5.3 Chat up to 16,384, Gemma 4 E4B IT up to 8,192 tokens.
Which can read images, PDFs, audio or video?
GPT-5.3 Chat accepts text and images; Gemma 4 E4B IT accepts text, images and audio. Gemma 4 E4B IT handles the widest range of inputs.
Are any of these open source?
Gemma 4 E4B IT publishes its weights and can be self-hosted; GPT-5.3 Chat is proprietary.
Which is newer?
Gemma 4 E4B IT is the newest, released Apr 2, 2026. GPT-5.3 Chat came out Mar 3, 2026. Knowledge cutoff: GPT-5.3 Chat Aug 31, 2025.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Nov 2, 2026.
