Gemini 2.5 Pro Computer Use Preview vs GPT-5.3-Codex
Gemini 2.5 Pro Computer Use Preview (2025) and GPT-5.3-Codex (2026) compare a standalone API model against a coding-specialized model. Gemini 2.5 Pro Computer Use Preview ships a 1.05m-token context window, while GPT-5.3-Codex ships a 400k-token context window. On pricing, Gemini 2.5 Pro Computer Use Preview costs $1.25/1M input tokens versus $1.75/1M for the alternative. This page treats the result as workflow and deployment fit, not a universal model winner.
Treat this as a product-type comparison: Gemini 2.5 Pro Computer Use Preview is standalone API model, while GPT-5.3-Codex is coding-specialized model. Choose based on workflow fit before reading any benchmark or price row as decisive.
Decision scorecard
Local evidence first| Signal | Gemini 2.5 Pro Computer Use Preview | GPT-5.3-Codex |
|---|---|---|
| Product type | Standalone API model | Coding-specialized model |
| Best for | multimodal apps, tool-calling agents, and long-context analysis | custom coding agents, code generation, and tool loops |
| Decision fit | RAG, Agents, and Long context | Coding, RAG, and Agents |
| Context window | 1.05m | 400k |
| Cheapest output | $10/1M tokens | $14/1M tokens |
| Provider routes | 2 tracked | 3 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Gemini 2.5 Pro Computer Use Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini 2.5 Pro Computer Use Preview has the lower cheapest tracked output price at $10/1M tokens.
- Gemini 2.5 Pro Computer Use Preview uniquely exposes Multimodal in local model data.
- Local decision data tags Gemini 2.5 Pro Computer Use Preview for RAG, Agents, and Long context.
- GPT-5.3-Codex has broader tracked provider coverage for fallback and procurement flexibility.
- GPT-5.3-Codex uniquely exposes Reasoning, Code execution, and Computer use in local model data.
- Local decision data tags GPT-5.3-Codex for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Gemini 2.5 Pro Computer Use Preview
$3,500
Cheapest tracked route/tier: Google AI Studio
GPT-5.3-Codex
$4,900
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $1,400. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Gemini 2.5 Pro Computer Use Preview and GPT-5.3-Codex; plan for SDK, billing, or endpoint changes.
- GPT-5.3-Codex is $4/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Multimodal before moving production traffic.
- GPT-5.3-Codex adds Reasoning, Code execution, and Computer use in local capability data.
- No overlapping tracked provider route is sourced for GPT-5.3-Codex and Gemini 2.5 Pro Computer Use Preview; plan for SDK, billing, or endpoint changes.
- Gemini 2.5 Pro Computer Use Preview is $4/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Reasoning, Code execution, and Computer use before moving production traffic.
- Gemini 2.5 Pro Computer Use Preview adds Multimodal in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-10-01 | 2026-02-05 |
| Context window | 1.05m | 400k |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Commercial use | Commercial use with conditions | Commercial use with conditions |
| Knowledge cutoff | 2025-01 | 2025-08 |
Pricing and availability
| Pricing attribute | Gemini 2.5 Pro Computer Use Preview | GPT-5.3-Codex |
|---|---|---|
| Input price | $1.25/1M tokens | $1.75/1M tokens |
| Output price | $10/1M tokens | $14/1M tokens |
| Providers |
Capabilities
| Capability | Gemini 2.5 Pro Computer Use Preview | GPT-5.3-Codex |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | No |
| Reasoning | No | Yes |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | No | Yes |
| IDE integration | No | No |
| Computer use | No | Yes |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on multimodal input: Gemini 2.5 Pro Computer Use Preview, reasoning mode: GPT-5.3-Codex, and code execution: GPT-5.3-Codex. Both models share vision, function calling, tool use, and structured outputs, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Gemini 2.5 Pro Computer Use Preview lists $1.25/1M input and $10/1M output tokens on the cheapest tracked provider, while GPT-5.3-Codex lists $1.75/1M input and $14/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Gemini 2.5 Pro Computer Use Preview lower by about $1.55 per million blended tokens. Availability is 2 providers versus 3, so concentration risk also matters.
Choose Gemini 2.5 Pro Computer Use Preview when long-context analysis, larger context windows, and lower input-token cost are central to the workload. Choose GPT-5.3-Codex when coding workflow support and broader provider choice are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Gemini 2.5 Pro Computer Use Preview or GPT-5.3-Codex?
Gemini 2.5 Pro Computer Use Preview supports 1.05m tokens, while GPT-5.3-Codex supports 400k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Gemini 2.5 Pro Computer Use Preview or GPT-5.3-Codex?
Gemini 2.5 Pro Computer Use Preview is cheaper on tracked token pricing. Gemini 2.5 Pro Computer Use Preview costs $1.25/1M input and $10/1M output tokens. GPT-5.3-Codex costs $1.75/1M input and $14/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Gemini 2.5 Pro Computer Use Preview or GPT-5.3-Codex open source?
Gemini 2.5 Pro Computer Use Preview is listed under Proprietary. GPT-5.3-Codex is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Gemini 2.5 Pro Computer Use Preview or GPT-5.3-Codex?
Both Gemini 2.5 Pro Computer Use Preview and GPT-5.3-Codex expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for multimodal input, Gemini 2.5 Pro Computer Use Preview or GPT-5.3-Codex?
Gemini 2.5 Pro Computer Use Preview has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Gemini 2.5 Pro Computer Use Preview and GPT-5.3-Codex?
Gemini 2.5 Pro Computer Use Preview is available on Google AI Studio and GCP Vertex AI. GPT-5.3-Codex is available on OpenRouter, OpenAI API, and Vercel AI Gateway. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-10. Data sourced from public model cards and provider documentation.