--- title: "gpt-5.3-codex - Model Details & Comparison" description: "gpt-5.3-codex from Opencode Zen: capabilities, context limits, pricing, and side-by-side comparisons with alternative models." url: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/opencode-zen/gpt-5.3-codex" markdown: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/opencode-zen/gpt-5.3-codex.md" --- # gpt-5.3-codex - Model Details & Comparison > gpt-5.3-codex from Opencode Zen: capabilities, context limits, pricing, and side-by-side comparisons with alternative models. ## Important Links - [View MCP Gateway](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/resources/mcp-gateway.md) - [Features](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/#features) - [Enterprise](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/enterprise) - [Pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/pricing.md) - [Docs](https://docs.getbifrost.ai) - [GitHub](https://github.com/maximhq/bifrost) - [Book a Demo](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/book-a-demo) ## About gpt-5.3-codex gpt-5.3-codex is a chat model from Opencode-zen, one of 42 chat models they offer. It is priced at $1.75 per 1M input tokens and $14.00 per 1M output tokens, ranking 2032 out of 2669 chat models by cost and cheaper than 24% of models in this category. ## Specifications - **Opencode Zen Provider.** - **Chat Mode.** - **$1.75 / 1M tokens Input Price.** - **$14.00 / 1M tokens Output Price.** ## gpt-5.3-codex Pricing Overview At $1.75 per 1M input tokens and $14.00 per 1M output tokens, gpt-5.3-codex ranks 2032 out of 2669 chat models by input cost. It is more expensive compared to the median of $0.50 for chat models, and is cheaper than 24% of models in this category. ## Models to Compare Alternatives to gpt-5.3-codex with comparable capabilities. | Model | Provider | Input $/1M | Output $/1M | | --- | --- | --- | --- | | ai21.jamba-1-5-large-v1:0 | AWS Bedrock | $2.00 | $8.00 | | amazon.nova-2-pro-preview-20251202-v1:0 | AWS Bedrock | $2.19 | $17.50 | | apac.amazon.nova-2-pro-preview-20251202-v1:0 | AWS Bedrock | $2.19 | $17.50 | | eu.amazon.nova-2-pro-preview-20251202-v1:0 | AWS Bedrock | $2.19 | $17.50 | | us.amazon.nova-2-pro-preview-20251202-v1:0 | AWS Bedrock | $2.19 | $17.50 | - [Compare ai21.jamba-1-5-large-v1:0](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/bedrock/ai21.jamba-1-5-large-v1-0.md) - [Compare amazon.nova-2-pro-preview-20251202-v1:0](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/bedrock/amazon.nova-2-pro-preview-20251202-v1-0.md) - [Compare apac.amazon.nova-2-pro-preview-20251202-v1:0](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/bedrock/apac.amazon.nova-2-pro-preview-20251202-v1-0.md) - [Compare eu.amazon.nova-2-pro-preview-20251202-v1:0](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/bedrock/eu.amazon.nova-2-pro-preview-20251202-v1-0.md) - [Compare us.amazon.nova-2-pro-preview-20251202-v1:0](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/bedrock/us.amazon.nova-2-pro-preview-20251202-v1-0.md) ## Related Resources - [Calculate gpt-5.3-codex costs](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/opencode-zen/model/gpt-5.3-codex.md) - [All Opencode-zen pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/opencode-zen.md) ## FAQ ### Is gpt-5.3-codex cheaper than ai21.jamba-1-5-large-v1:0? Yes. gpt-5.3-codex costs $1.75 per 1M input tokens compared to ai21.jamba-1-5-large-v1:0's $2.00 per 1M input tokens, making it 14% more affordable. Both are chat models. ### How does gpt-5.3-codex pricing compare to the average chat model? gpt-5.3-codex input pricing is $1.75 per 1M tokens, which is 250% above the median of $0.50 for chat models. It ranks 2032 out of 2669 chat models by input cost, making it cheaper than 24% of models in this category. For output, it costs $14.00 per 1M tokens compared to the median of $1.44. ### What makes gpt-5.3-codex different from other Opencode-zen models? Among Opencode-zen's 42 chat models, gpt-5.3-codex ranks 21 by input cost. ### What are the best alternatives to gpt-5.3-codex? The most comparable chat models to gpt-5.3-codex are: ai21.jamba-1-5-large-v1:0 from AWS Bedrock ($2.00/1M input tokens); amazon.nova-2-pro-preview-20251202-v1:0 from AWS Bedrock ($2.19/1M input tokens); apac.amazon.nova-2-pro-preview-20251202-v1:0 from AWS Bedrock ($2.19/1M input tokens); eu.amazon.nova-2-pro-preview-20251202-v1:0 from AWS Bedrock ($2.19/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library. ### How do I calculate gpt-5.3-codex costs? gpt-5.3-codex is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $1.75 and generating 1M output tokens costs $14.00. ## Related Resources - [Opencode Zen models](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/provider/opencode-zen.md) - [Model library](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library.md) - [LLM cost calculator](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator.md) - [Docs: Bifrost docs](https://docs.getbifrost.ai) - [GitHub: maximhq/bifrost](https://github.com/maximhq/bifrost) - [Pricing: Bifrost pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/pricing.md) - [Enterprise: Bifrost enterprise](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/enterprise) - [Book a Demo: Bifrost demo](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/book-a-demo) - [Resources: Bifrost resources](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/resources.md) --- *This is a markdown version of [https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/opencode-zen/gpt-5.3-codex](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/opencode-zen/gpt-5.3-codex) for AI/LLM consumption.*