DeepSeek V4 Pro vs GPT-5.3 Codex
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
DeepSeek V4 Pro
B
GPT-5.3 Codex
- ProviderDeepSeekOpenAI
- Rank#30Higher rank#31
- TierAA
- Score83.0Higher score82.9
- PriceAPI $1.32 input / $3.96 output per 1M tokens at peak hours ($0.66 / $1.98 off-peak); MIT open weightsLower price tierAPI $1.75 input / $14 output per 1M tokens
- TaglineMIT-licensed open-weight heavyweight, among the open-weight leaders on SWE-bench Verified and LiveCodeBench.OpenAI's February 2026 agentic coding model combining code generation with general-purpose intelligence, since folded into GPT-5.4 and followed by the GPT-5.5 and GPT-5.6 families.
| Attribute | DeepSeek V4 Pro | GPT-5.3 Codex |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Rank | #30Higher rank | #31 |
| Tier | A | A |
| Score | 83.0Higher score | 82.9 |
| Price | API $1.32 input / $3.96 output per 1M tokens at peak hours ($0.66 / $1.98 off-peak); MIT open weightsLower price tier | API $1.75 input / $14 output per 1M tokens |
| Tagline | MIT-licensed open-weight heavyweight, among the open-weight leaders on SWE-bench Verified and LiveCodeBench. | OpenAI's February 2026 agentic coding model combining code generation with general-purpose intelligence, since folded into GPT-5.4 and followed by the GPT-5.5 and GPT-5.6 families. |