gpt-5-codex
OpenRouter · chat model
gpt-5-codex is listed here as a chat model from OpenRouter. This page shows simple API pricing, token limits, and capability flags so you can compare it with similar options.
Input
$1.2500 / 1M tokens
Output
$10.0000 / 1M tokens
Cached input
$0.1250 / 1M tokens
Context
128.0K
Quick read
Best for
Use this page when you need a fast view of cost, context size, and supported features before testing the model in your own workload.
Things to verify
Always check the provider page for discounts, cache pricing, region rules, and any model limits that may not appear in public metadata.
Pricing
| Item | Price |
|---|---|
| Input | $1.2500 / 1M tokens |
| Output | $10.0000 / 1M tokens |
| Cached input | $0.1250 / 1M tokens |
| Embedding | $1.2500 / 1M tokens |
Token limits
Context window
128.0K
Max input tokens
272.0K
Max output tokens
128.0K
Max tokens
128.0K
Capabilities
| Capability | Supported |
|---|---|
| Vision | — |
| Function calling | — |
| Parallel function calling | — |
| Tool choice | ✅ |
| Prompt caching | — |
| Reasoning | ✅ |
| Response schema | — |
| System messages | — |
| Audio input | — |
| Audio output | — |
| Web search | — |
| PDF input | — |
| Video input | — |
Benchmarks
Most benchmark rows are attached to the base model family rather than this provider route. Open benchmark explorer
| Benchmark | Score | Metric | Scope | Checked | Source |
|---|---|---|---|---|---|
| SWE-bench Verified | 74.9% | accuracy (%) | Base model: gpt-5 (GPT-5 (high)) | 2026-05-31 | Link |
| Aider Polyglot | 88.0% | accuracy (%) | Base model: gpt-5 (GPT-5 (high)) | 2026-05-31 | Link |
| GPQA Diamond | 85.7% | accuracy (%) | Base model: gpt-5 (GPT-5 (high)) | 2026-05-31 | Link |
| AIME 2025 | 94.6% | accuracy (%) | Base model: gpt-5 (GPT-5 (high)) | 2026-05-31 | Link |
| Tau2-bench Telecom | 96.7% | accuracy (%) | Base model: gpt-5 (GPT-5 (high)) | 2026-05-31 | Link |
| Aider Polyglot | 88.0% | percent correct | Base model: GPT-5 (openai/gpt-5) | 2026-05-31 | Link |
| Aider Polyglot | 86.7% | percent correct | Base model: GPT-5 (openai/gpt-5) | 2026-05-31 | Link |
| Aider Polyglot | 81.3% | percent correct | Base model: GPT-5 (openai/gpt-5) | 2026-05-31 | Link |
Sources
| Source links | |
| Pricing data | LiteLLM model cost map |
| Synced at | 2026-05-28 |
Docs
| Official docs |
Similar models
This list is ranked by overall similarity. Use filters to emphasize the lens that matters most for the replacement you are making.
Comparing from
| Model | Cost | Input shape | Features | Context | Why it is close |
|---|---|---|---|---|---|
| gpt-5-codex OpenRouter | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext
Output: text | Tool choiceReasoning | 128.0K | Current model Reference row |
| Model | Cost | Input shape | Features | Context | Why it is close |
|---|---|---|---|---|---|
| gpt-5.2-codex OpenRouter | In $1.7500 / 1M tokens Out $14.0000 / 1M tokens | imagetext
Output: text | Tool choiceReasoning | 128.0K | Same provider Overall 94% |
| gpt-5 OpenRouter | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext file
Output: text | Tool choiceReasoning | 128.0K | Same provider Overall 92% |
| gpt-5.1-codex-max OpenRouter | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext
Output: text | Tool choiceReasoning | 128.0K | Same provider Overall 85% |
| gpt-5.1-2025-11-13 Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext pdf
Output: text | Tool choiceReasoning | 128.0K | Text + image covered Overall 81% |
| gpt-5 Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext pdf
Output: text | Tool choiceReasoning | 128.0K | Text + image covered Overall 81% |
| gpt-5-2025-08-07 Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext pdf
Output: text | Tool choiceReasoning | 128.0K | Text + image covered Overall 81% |
| gpt-5-chat OpenRouter | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext file
Output: text | Tool choiceReasoning | 16.4K | Same provider Overall 79% |
| gpt-5-mini OpenRouter | In $0.2500 / 1M tokens Out $2.0000 / 1M tokens | imagetext file
Output: text | Tool choiceReasoning | 128.0K | Same provider Overall 76% |
| gpt-5-nano OpenRouter | In $0.0500 / 1M tokens Out $0.4000 / 1M tokens | imagetext file
Output: text | Tool choiceReasoning | 128.0K | Same provider Overall 73% |
| glm-4p5v fireworks_ai | In $1.2000 / 1M tokens Out $1.2000 / 1M tokens | imagetext video
Output: text | Reasoning | 131.1K | Text + image covered Overall 69% |
| mistral-small-3.2-24b-instruct OpenRouter | In $0.1000 / 1M tokens Out $0.3000 / 1M tokens | imagetext
Output: text | Tool choice | 128.0K | Same provider Overall 69% |
| mistral-small-3.1-24b-instruct OpenRouter | In $0.1000 / 1M tokens Out $0.3000 / 1M tokens | imagetext
Output: text | Tool choice | 131.1K | Same provider Overall 68% |
| anthropic.claude-mythos-preview Bedrock | In N/A Out N/A | imagetext
Output: text | Tool choiceReasoning | 128.0K | Text + image covered Overall 68% |
| Kimi-K2.5 Together AI | In $0.5000 / 1M tokens Out $2.8000 / 1M tokens | imagetext
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| ui-tars-1.5-7b OpenRouter | In $0.1000 / 1M tokens Out $0.2000 / 1M tokens | imagetext
Output: text | Tool choice | 2.0K | Same provider Overall 54% |
| gpt-5.1 Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext pdf
Output: image, text | Tool choiceReasoning | 128.0K | Partial I/O overlap Overall 49% Missing text, image |
| gpt-5.1-chat Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext pdf
Output: image, text | Tool choiceReasoning | 128.0K | Partial I/O overlap Overall 49% Missing text, image |
| gpt-5.1-chat-2025-11-13 Azure | In $1.2500 / 1M tokens Out $10.0000 / 1M tokens | imagetext pdf
Output: image, text | Reasoning | 16.4K | Partial I/O overlap Overall 33% Missing text, image |
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