78+ models · multimodal · reasoning · context window · price tiers — Sources: OpenAI official docs · Azure AI Foundry docs · Azure model retirement (synced 2026-08-30)
Direct recommendation by task type
Understand these patterns and instantly grasp any model name
| Suffix | Meaning | Example |
|---|---|---|
| Version number (4→5→5.6) | Higher number = newer and stronger | gpt-4 → gpt-5 → gpt-5.6 |
| Codename (-sol/-terra/-luna) | Variant codename within the same generation (e.g. GPT-5.6 family) | gpt-5.6-sol, gpt-5.6-cyber |
| -mini | Mid-size, balanced performance and cost | gpt-5-mini, o4-mini |
| -nano | Smallest, cheapest and fastest | gpt-5-nano, gpt-4.1-nano |
| -pro | Enhanced, more compute and accuracy | gpt-5.2-pro, o3-pro |
| -codex | Coding-specialized | gpt-5.2-codex |
| -max | Optimized for long tasks | gpt-5.1-codex-max |
| -turbo | Speed-optimized version | gpt-4-turbo |
| -hd | HD / high-quality version | tts-1-hd |
| -oss-XXb | Open-source, XX = parameters in billions | gpt-oss-120b |
| o1 / o3 / o4 | Reasoning model family (deep thinking) | o3, o4-mini |
| -deep-research | Deep-research specialized, extra-long reasoning | o3-deep-research |
| -preview / -latest | Preview / latest (auto-updating) | computer-use-preview, gpt-chat-latest |
| -transcribe / -tts | Speech-to-text / text-to-speech | gpt-transcribe, gpt-4o-mini-tts |
| -realtime / -live | Realtime two-way audio / live transcription | gpt-realtime-2.1, gpt-live-transcribe |
OpenAI's most advanced models, recommended for most tasks. GPT-5.6 is the current generation (released 2026-07), with multi-agent orchestration (preview) and computer use; tool calling must go through the Responses API (Chat Completions and function tools can't be combined unless reasoning_effort=none)
| Model ID | Tier | Price | Modality | Reasoning | Speed | Context | Input | Output | Notes |
|---|---|---|---|---|---|---|---|---|---|
| gpt-5.6-solNEW | Flagship | Best | Fast | 1.05M | 922K | 128K | GPT-5.6 family (codename Sol), multi-agent orchestration (preview) | ||
| gpt-5.6-terraNEW | Flagship | Deep | Fast | 1.05M | 922K | 128K | GPT-5.6 family (codename Terra), multi-agent orchestration (preview) | ||
| gpt-5.6-lunaNEW | Flagship | Standard | Fast | 1.05M | 922K | 128K | GPT-5.6 family (codename Luna), multi-agent orchestration (preview) | ||
| gpt-5.6-cyberNEW | Flagship | Best | Fast | 400K | 272K | 128K | GPT-5.6 family (codename Cyber), $12.5/$75 | ||
| gpt-daybreak-red-latestNEW | Flagship | Best | Fast | 400K | 272K | 128K | Alias of gpt-5.6-cyber for offensive security research (Daybreak program); separate approval required | ||
| gpt-daybreak-blue-latestNEW | Flagship | Best | Fast | 1.05M | 922K | 128K | Alias of gpt-5.6-sol for defensive security work (Daybreak program); separate approval required | ||
| gpt-chat-latestNEWPreview | Flagship | Basic | Fast | 400K | 272K | 128K | Continuously updated chat model (i.e. GPT-5.5 Instant); fixed reasoning effort | ||
| gpt-5.5 | Flagship | Best | Fast | 1.05M | 922K | 128K | ~922K token effective budget via Responses API | ||
| gpt-5.5-proNEW | Flagship | Best | Slowest | 1.05M | 922K | 128K | Enhanced reasoning, Responses API only (incl. Batch); no cached-input discount | ||
| gpt-5.4 | Flagship | Best | Standard | 1.05M | 922K | 128K | Supports computer use; great for coding and agent tasks | ||
| gpt-5.4-proPRO | Flagship | Best | Slowest | 1.05M | 922K | 128K | Enhanced reasoning, Responses API only, unlimited compute | ||
| gpt-5.4-mini | Balanced | Deep | Fast | 400K | 272K | 128K | Lightweight, supports computer use | ||
| gpt-5.4-nano | Budget | Standard | Fast | 400K | 272K | 128K | Fastest, cheapest GPT-5.4 | ||
| gpt-5.3-chatDeprecated | Balanced | Fast | Fast | 128K | 111.6K | 16K | Snapshot retired (2026-06-29); use gpt-chat-latest instead | ||
| gpt-5.2 | Flagship | Best | Standard | 400K | 272K | 128K | Previous flagship, stable and reliable | ||
| gpt-5.2-chatDeprecated | Balanced | Fast | Fast | 128K | 111.6K | 16K | Snapshot retired; use gpt-chat-latest instead | ||
| gpt-5.2-proPRO | Flagship | Best | Slowest | 400K | 272K | 128K | GPT-5.2 with enhanced reasoning, unlimited compute | ||
| gpt-5.1 | Flagship | Deep | Standard | 400K | 272K | 128K | reasoning_effort defaults to none; reasoning must be enabled explicitly | ||
| gpt-5.1-chatDeprecated | Balanced | Basic | Fast | 128K | 111.6K | 16K | Snapshot retired; use gpt-chat-latest instead; built-in reasoning, no temperature support | ||
| gpt-5 | Balanced | Deep | Standard | 400K | 272K | 128K | Supports reinforcement fine-tuning (RFT, limited rollout) | ||
| gpt-5-proPRO | Flagship | Best | Slowest | 400K | 272K | 128K | Enhanced reasoning, more accurate responses | ||
| gpt-5-miniRec | Balanced | Standard | Fast | 400K | 272K | 128K | Faster and cheaper, no registration needed | ||
| gpt-5-nano | Budget | Basic | Fastest | 400K | 272K | 128K | Fastest, cheapest GPT-5, no registration needed | ||
| gpt-5-chatDeprecated | Balanced | Fast | Fast | 128K | 111.6K | 16K | Snapshot retired; use the always-current gpt-chat-latest instead | ||
| gpt-4.1 | Balanced | Fast | Standard | 1M | 1M | 32K | Smartest non-reasoning model, fine-tuning supported | ||
| gpt-4.1-mini | Balanced | Fast | Fast | 1M | 1M | 32K | Small fast version, fine-tuning supported | ||
| gpt-4.1-nano | Budget | Fast | Fastest | 1M | 1M | 32K | Fastest, cheapest GPT-4.1 |
Optimized for code generation and coding tasks, ideal for agentic workflows, tuned for Codex CLI and the Codex VS Code extension
| Model ID | Tier | Price | Modality | Reasoning | Speed | Context | Input | Output | Notes |
|---|---|---|---|---|---|---|---|---|---|
| gpt-5.3-codexNEW | Flagship | Deep | Standard | 400K | 272K | 128K | Latest Codex model (2026-02), Responses API only | ||
| gpt-5.2-codex | Flagship | Deep | Standard | 400K | 272K | 128K | Most capable coding model, optimized for Codex CLI | ||
| gpt-5.1-codex | Flagship | Deep | Standard | 400K | 272K | 128K | Responses API only, optimized for Codex CLI | ||
| gpt-5.1-codex-max | Flagship | Deep | Fast | 400K | 272K | 128K | Supports reasoning_effort=xhigh | ||
| gpt-5.1-codex-mini | Balanced | Deep | Standard | 400K | 272K | 128K | Lightweight Codex | ||
| gpt-5-codex | Balanced | Deep | Standard | 400K | 272K | 128K | Responses API only, optimized for Codex CLI | ||
| codex-miniDeprecated | Balanced | Standard | Standard | 200K | 200K | 100K | Fine-tuned o4-mini; deprecated, retires 2026-11-15 |
Focused on deep thinking and complex reasoning, with configurable reasoning effort reasoning_effort: low/medium/high
| Model ID | Tier | Price | Modality | Reasoning | Speed | Context | Input | Output | Notes |
|---|---|---|---|---|---|---|---|---|---|
| o1-proDeprecated | Flagship | Deep | Slowest | 200K | 200K | 100K | Deprecated, retires 2026-10-21; official recommendation gpt-5.6-sol | ||
| o3-deep-researchRec | Flagship | Best | Slowest | 200K | 200K | 100K | Best deep research, extra-long reasoning chains (Azure: via Foundry proxy service only) | ||
| o3-proPRO | Flagship | Best | Slowest | 200K | 200K | 100K | More compute, more accurate | ||
| o1Deprecated | Balanced | Deep | Slowest | 200K | 200K | 100K | Deprecated, retires 2026-10-21; official recommendation gpt-5.6-sol | ||
| o3Deprecated | Flagship | Best | Slowest | 200K | 200K | 100K | Deprecated, retires 2026-10-21; official recommendation gpt-5.6-sol | ||
| o4-mini-deep-research | Balanced | Deep | Standard | 200K | 200K | 100K | Faster, cheaper deep research | ||
| o4-miniDeprecated | Budget | Deep | Standard | 200K | 200K | 100K | Deprecated, retires 2026-10-16 | ||
| o3-miniDeprecated | Budget | Deep | Standard | 200K | 200K | 100K | Deprecated, retires 2026-10-01; replacement o4-mini |
High-quality visual content from text or images
| Model ID | Tier | Price | Input | Output | Speed | Resolution | Notes |
|---|---|---|---|---|---|---|---|
| gpt-image-2NEW | Flagship | Standard | up to 4K | Latest-generation image model | |||
| gpt-image-1.5 | Flagship | Standard | up to 4K | Most advanced image model | |||
| gpt-image-1 | Balanced | Slowest | up to 2K | Previous-generation image model | |||
| gpt-image-1-mini | Budget | Slowest | up to 1K | Budget image model | |||
| sora-2-pro | Flagship | Slowest | up to 4K 60fps | Legacy video model (officially marked Legacy); still usable | |||
| sora-2 | Flagship | Slow | up to 1080p | Legacy video model (officially marked Legacy); still usable |
Speech-to-text, text-to-speech, realtime chat and audio understanding. gpt-realtime-translate, gpt-realtime-whisper and gpt-live-transcribe are billed by duration; other realtime models by token
| Model ID | Price | Type | Input | Output | Speed | Features | Notes |
|---|---|---|---|---|---|---|---|
| gpt-live-transcribeNEWRec | Live transcription | Fastest | billed by duration | Current recommendation for live transcription (2026-07) | |||
| gpt-realtime-whisperNEW | Live transcription | Fastest | billed by duration | Low-latency live transcription (2026-05) | |||
| gpt-realtime-translateNEW | Realtime translation | Fastest | billed by duration | Realtime multilingual translation, outputting translated speech and text (2026-05) | |||
| gpt-transcribeNEW | Speech to text | Standard | 25MB files | Offline file transcription (/v1/audio/transcriptions), with language hints | |||
| whisper-1 | Speech to text | Standard | 99 languages | General speech recognition, supports translation | |||
| gpt-4o-transcribe | Speech to text | Standard | high accuracy | GPT-4o-powered transcription | |||
| gpt-4o-transcribe-diarize | Speech to text | Standard | speaker diarization | Can distinguish multiple speakers | |||
| gpt-realtime-2.1NEWRec | Realtime chat | Fast | 32K/4K | Latest realtime chat (2026-07), improved silence and noise handling | |||
| gpt-realtime-2.1-miniNEWPreview | Realtime chat | Fastest | 32K/4K | Lightweight realtime chat | |||
| gpt-realtime-2 | Realtime chat | Fast | 32K/4K | Second-generation realtime audio (2026-05) | |||
| gpt-realtime-1.5 | Realtime chat | Fast | 32K/4K | Realtime audio processing (2026-02) | |||
| gpt-realtimeGA | Realtime chat | Fast | 32K/4K | First GA realtime two-way audio (2025-08) | |||
| gpt-realtime-miniDeprecated | Realtime chat | Fastest | 32K/4K | Deprecated, retires 2026-12-15 | |||
| gpt-audio-1.5NEW | Audio understanding | Standard | 128K/16K | Latest audio understanding model (2026-02) | |||
| gpt-audio | Audio understanding | Standard | 128K/16K | Audio support via Chat Completions | |||
| gpt-audio-mini | Audio understanding | Fastest | 128K/16K | Lightweight audio processing | |||
| tts-1-hdRec | Text to speech | Standard | high quality | High-fidelity text to speech | |||
| tts-1 | Text to speech | Fast | low latency | Speed-first TTS | |||
| gpt-4o-mini-tts | Text to speech | Fast | controllable style | Can guide the voice with a specific style or tone |
Self-hostable, no API call limits, only hardware costs
| Model ID | Price | Parameters | Modality | Reasoning | Speed | Hardware | Context | Input | Notes |
|---|---|---|---|---|---|---|---|---|---|
| gpt-oss-120bOSS | Self-hosted | 120B | Deep | Standard | 1x H100 80GB | 131K | 131K | Most capable open-source model, requires Foundry deployment | |
| gpt-oss-20bOSS | Self-hosted | 20B | Deep | Standard | 1x A100 40GB | 131K | 131K | Supports hosted compute + Foundry Local |
Text embedding for semantic search, RAG and recommendation systems
| Model ID | Price | Use | Input | Speed | Dimensions | Score | Notes |
|---|---|---|---|---|---|---|---|
| text-embedding-3-largeRec | Embed | Slow | 3,072 | MIRACL 54.9 / MTEB 64.6 | Most capable embedding model | ||
| text-embedding-3-small | Embed | Standard | 1,536 | MIRACL 44.0 / MTEB 62.3 | Small embedding model | ||
| text-embedding-ada-002 | Embed | Slow | 1,536 | MIRACL 31.4 / MTEB 61.0 | Legacy embedding model |
Automates computer operation (mouse & keyboard); access requires registration
| Model ID | Price | Modality | Speed | Context | Input | Output | Features |
|---|---|---|---|---|---|---|---|
| computer-use-previewPreview | Slow | 8K | 8K | 1K | Mouse · keyboard · screenshot analysis |
Still usable, but GPT-4.1 or GPT-5 is recommended for new projects
| Model ID | Tier | Price | Modality | Speed | Context | Input | Output | Notes |
|---|---|---|---|---|---|---|---|---|
| gpt-4oDeprecated | Balanced | Standard | 128K | 128K | 16K | 2024-05/08 versions deprecated (retiring from 2026-10); migrate to gpt-5.1 | ||
| gpt-4o-miniDeprecated | Budget | Fast | 128K | 128K | 16K | Deprecated, retires 2027-04-14; migrate to gpt-5-mini | ||
| gpt-4-turbo | Balanced | Standard | 128K | 128K | 4K | Older highly capable model | ||
| gpt-4 | Balanced | Standard | 8K | 8K | 4K | Classic highly capable model | ||
| gpt-3.5-turbo | Budget | Standard | 16K | 16K | 4K | Older GPT with limited capability |
Retirement info for the models covered on this page. Plan migrations by retirement date and avoid new projects. Lifecycle: Deprecated = announced retirement (still usable, retires on schedule); Retired = no longer available; Legacy = older version (usable, migration advised).
| Model ID | Version | Lifecycle | Retirement | Replacement | Migration advice |
|---|---|---|---|---|---|
| gpt-5-chatDeprecated | 2025-10-03 | Retired | 2026-05-13 | →gpt-chat-latest | Snapshot retired; switch to the always-current alias |
| gpt-5.2-chatDeprecated | 2025-12-11 | Retired | 2026-05-13 | →gpt-chat-latest | Snapshot retired; switch to the always-current alias |
| gpt-5-chatDeprecated | 2025-08-07 | Retired | 2026-06-29 | →gpt-chat-latest | Snapshot retired; switch to the always-current alias |
| gpt-5.1-chatDeprecated | 2025-11-13 | Retired | 2026-06-29 | →gpt-chat-latest | Snapshot retired; switch to the always-current alias |
| gpt-5.2-chatDeprecated | 2026-02-10 | Retired | 2026-06-29 | →gpt-chat-latest | Snapshot retired; switch to the always-current alias |
| gpt-5.3-chatDeprecated | 2026-03-03 | Retired | 2026-06-29 | →gpt-chat-latest | Snapshot retired; switch to the always-current alias |
| o3-miniDeprecated | 2025-01-31 | Deprecated | 2026-10-01 | →o4-mini | Drop-in replacement, API-compatible |
| gpt-4oDeprecated | 2024-05-13 | Deprecated | 2026-10-01 | →gpt-5.1 | Earliest 4o version; migrate early |
| o4-miniDeprecated | 2025-04-16 | Deprecated | 2026-10-16 | — | No official replacement listed; consider gpt-5.4-mini |
| sora-2Deprecated | 2025-12-08 | Legacy | 2026-10-15 | — | Still usable; officially marked Legacy, plan migration |
| sora-2-proDeprecated | 2025-10-06 | Legacy | — | — | Still usable; officially marked Legacy, plan migration |
| o1Deprecated | 2024-12-17 | Deprecated | 2026-10-21 | →gpt-5.6-sol | Official recommendation, stronger reasoning |
| o1-proDeprecated | 2025-03-19 | Deprecated | 2026-10-21 | →gpt-5.6-sol | Official recommendation, stronger reasoning |
| o3Deprecated | 2025-04-16 | Deprecated | 2026-10-21 | →gpt-5.6-sol | Official recommendation, stronger reasoning |
| codex-miniDeprecated | 2025-05-16 | Deprecated | 2026-11-15 | — | Migrate to gpt-5.1-codex-mini |
| gpt-realtime-miniDeprecated | 2025-12-15 | Deprecated | 2026-12-15 | — | No official replacement listed; consider gpt-realtime-2.1-mini |
| gpt-4oDeprecated | 2024-08-06 | Deprecated | 2027-04-14 | →gpt-5.1 | Planned migration |
| gpt-4o-miniDeprecated | 2024-07-18 | Deprecated | 2027-04-14 | — | Migrate to gpt-5-mini or gpt-5.4-mini |
| gpt-4o | 2024-11-20 | Legacy | 2027-04-14 | →gpt-5.1 | Still usable; GPT-5.1 recommended for new projects |
| gpt-4.1 | 2025-04-14 | Legacy | 2027-04-14 | — | Still usable; GPT-5.4 family recommended for new projects |
| gpt-4.1-mini | 2025-04-14 | Legacy | 2027-04-14 | — | Still usable; GPT-5.4 family recommended for new projects |
| gpt-4.1-nano | 2025-04-14 | Legacy | 2027-04-14 | — | Still usable; GPT-5.4 family recommended for new projects |
Match the best model to your needs quickly
| Scenario | Recommended | Alternatives | Key capability |
|---|---|---|---|
| Long-document processing~1M tokens | gpt-5.6-sol | gpt-5.5, gpt-4.1 | ~1.05M context |
| Complex math / logic reasoning | o3-deep-research | o3-pro, gpt-5.4-pro | Best |
| Agentic coding workflows | gpt-5.3-codex | gpt-5.2-codex | + long tasks |
| Multimodal understanding (image + audio) | gpt-5.6-sol | gpt-4o | |
| Realtime voice chat | gpt-realtime-2.1 | gpt-realtime-2.1-mini | WebSocket bidirectional |
| Live voice transcription | gpt-live-transcribe | gpt-realtime-whisper | billed by duration |
| High-quality image generation | gpt-image-2 | gpt-image-1.5 | up to 4K resolution |
| Video generation | sora-2 | sora-2-pro | + synced audio |
| Ultra-low cost | gpt-5.4-nano | gpt-5-nano, gpt-4.1-nano | Budget |
| Self-hosted deployment | gpt-oss-120b | gpt-oss-20b | Apache 2.0 open source |
| Semantic search / RAG | text-embedding-3-large | text-embedding-3-small | 3072-dim vectors |
| Fastest responses | gpt-5.4-nano | gpt-4.1-nano | Fast |