Command A Plus vs GPT-5.3 Codex Spark
Too close to call on our weighted score (GPT-5.3 Codex Spark 38, Command A Plus 35). The right pick depends on what you value most.
CohereCommand A Plus
35/100- ECI—
- Price$2.50 / $10.00
- Context128K
OpenAIGPT-5.3 Codex Spark
38/100- ECI—
- Price$1.75 / $14.00
- Context128K
Add a model
Make it a three-way comparison.
Too close to call
It is close. Our weighted score puts them within 2 points (GPT-5.3 Codex Spark 38/100, Command A Plus 35/100), so choose by what matters most for your work: Command A Plus on price. 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 priceCommand A PlusCommand A Plus $4.38 · GPT-5.3 Codex Spark $4.81 per 1M tokens (3:1 blend)
- Longest contextAbout the sameCommand A Plus 128,000 · GPT-5.3 Codex Spark 128,000 tokens
- Widest inputsGPT-5.3 Codex SparkCommand A Plus: Text, Images · GPT-5.3 Codex Spark: Text, Images, PDFs
- Self-hostingCommand A PlusPublishes downloadable weights
| Measure | Weight | Command A Plus | GPT-5.3 Codex Spark |
|---|---|---|---|
| Price | 50% | 19 | 18 |
| Inputs & features | 30% | 70 | 80 |
| Context window | 20% | 24 | 24 |
| Overall | 100% | 35/100 | 38/100 |
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 | Command A PlusCohere | GPT-5.3 Codex SparkOpenAI |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $2.50 | $1.75 (best) |
| Output | $10.00 (best) | $14.00 |
| Cached input | — | $0.175 |
| Blended (3:1) | $4.38 (best) | $4.81 |
| Long-context rate | Same rate | Same rate |
| Price source | Official Cohere API | Official OpenAI API |
| Limits | ||
| Context window | 128,000 tokens | 128,000 tokens |
| Max output | 64,000 tokens (best) | 32,000 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | Yes |
| PDFs | No | Yes |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | Yeslow · medium · high · xhigh |
| Tool calling | Yes | Yes |
| Structured output | Yes | Yes |
| Availability | ||
| Weights | Open | Proprietary |
| API model ID | command-a-plus-05-2026 | gpt-5.3-codex-spark |
| API providers | 1 | 1 |
| Released | May 20, 2026 | Feb 5, 2026 |
| Knowledge cutoff | Apr 1, 2025 | 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.
- Command A Plus$45.00
- GPT-5.3 Codex Spark$45.50
Which should you choose?
Which is better: Command A Plus or GPT-5.3 Codex Spark?
It is close. Our weighted score puts them within 2 points (GPT-5.3 Codex Spark 38/100, Command A Plus 35/100), so choose by what matters most for your work: Command A Plus on price. 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, Command A Plus or GPT-5.3 Codex Spark?
Command A Plus is cheaper at $2.50 input / $10.00 output per million tokens (official Cohere API price). GPT-5.3 Codex Spark costs $1.75 input / $14.00 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $4.38 per million tokens for Command A Plus versus $4.81 for GPT-5.3 Codex Spark (1.1× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Command A Plus has not been scored yet and GPT-5.3 Codex Spark has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Command A Plus and GPT-5.3 Codex Spark 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?
Command A Plus and GPT-5.3 Codex Spark share the same 128,000-token context window. Maximum output per response: Command A Plus up to 64,000, GPT-5.3 Codex Spark up to 32,000 tokens.
Which can read images, PDFs, audio or video?
Command A Plus accepts text and images; GPT-5.3 Codex Spark accepts text, images and PDFs. GPT-5.3 Codex Spark handles the widest range of inputs.
Are any of these open source?
Command A Plus publishes its weights and can be self-hosted; GPT-5.3 Codex Spark is proprietary.
Which is newer?
Command A Plus is the newest, released May 20, 2026. GPT-5.3 Codex Spark came out Feb 5, 2026. Knowledge cutoff: Command A Plus Apr 1, 2025, GPT-5.3 Codex Spark 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 Oct 4, 2026.
Related comparisons
- Add Kimi K2.7 Code HighspeedThree-way comparison
- Command A Plus vs Kimi K2.7 Code HighspeedMoonshot AI
- Command A Plus vs ParetoUnbiased
- Command A Plus vs Qwen3.8 Max PreviewAlibaba (Qwen)
- GPT-5.3 Codex Spark vs Gemini 2.5 Computer Use PreviewGoogle
- GPT-5.3 Codex Spark vs Kimi K2.7 Code HighspeedMoonshot AI
- GPT-5.3 Codex Spark vs MiMo-V2.6-Pro-UltraSpeedXiaomi
