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OpenAI: GPT-5 Codex
openai·openai/gpt-5-codex-2·GA·Closed·gpt-codex series
Coding-optimized GPT model for repository edits, reviews, and agentic software work
At a glance
Reference price$1.25 / $10.00 per 1M
Cache read $0.125 · Helicone
Lowest paid$1.25 / $10.00
Helicone Gateway
Context400,000
Output limit128,000
Capabilities
Reasoning✓ Tool use? Structured outputTemperatureAttachments
Modalities
Text
Knowledge cutoff2025-01
Released / updated2025-01-01 / 2025-01-01
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 1 providers1 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Helicone gpt-5-codex | Gateway | $1.25 | $10.00 | $0.125 | — | 400,000 | 128,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1Helicone$615.00
The cheapest paid channel is the only channel.
Related models
GPT-5.3 Codexsame series$1.75 / $14.00GPT-5.3 Codex (OpenAI)same series$1.75 / $14.00GPT-5.3 Codex (Azure)same series$1.75 / $14.00Qwen3 Maxcheaper alternative$0.861 / $3.44Qwen3 235B-A22B Instruct 2507cheaper alternative$1.03 / $3.08Qwen3-Coder 30B-A3B Instructcheaper alternative$0.216 / $0.861Qwen3 Coder Pluscheaper alternative$1.00 / $5.00
Price historyone sample accumulated per data sync
Input listOutput listMin blended