o4-mini
o4-mini is a legacy integration reference; evaluate GPT-5.6 Terra before starting new work.
- Family
- o4-mini
- Released
- 2025-04-16
- Context
- 200K
- Architecture
- Decoder Only
- Knowledge cutoff
- 2025-08
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryRestricted
- Weights
- Not released
- Code
- Unknown
- Training
- Fine-tuned
Cheapest of 4 routes · Replicate API
This model is deprecated. OpenAI recommends switching to GPT-5.6 Terra.
About
Fast and cost-efficient reasoning model with vision support for math, coding, and visual understanding. Retired from ChatGPT February 13, 2026 but still available via API. Released April 16, 2025.
Providers(4)
Compare all 4Compare API pricing across 4 tracked provider routes for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Batch in / out | Cache | Route |
|---|---|---|---|---|---|
| Replicate API | $1.00 | $4.00 | - | - | Serverless |
| OpenAI API | $1.10 | $4.40 | $0.550 / $2.20 | - | Serverless |
| OpenRouter | $1.10 | $4.40 | - | read $0.275 | Serverless |
| Vercel AI Gateway | $1.10 | $4.40 | - | read $0.275 | Serverless |
Available via routers & gateways(15)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.
AIRouter
RouterCommercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.
Helicone
GatewayObservability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.
Kong AI Gateway
GatewayMulti-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.
Capabilities
Benchmark peer barsfor Coding
Benchmark scores(12)
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| 68.1 | —Observed 2025-04-16 | — | ||
| 87.3 | 2026-04 (high reasoning mode)Observed 2026-04-14 | — | ||
| 72.0 | 2026-04 (high)Observed 2026-04-14 | — | ||
| 81.6 | —Observed 2026-04-15 | — | ||
| 84.3 | —Observed 2026-06-03 | — | ||
| 53.2 | v4Observed 2026-04-14 | — | ||
| 83.2 | —Observed 2026-04-14 | — | ||
| 44.9 | MultiChallengeObserved 2026-04-26 | — | ||
| 81.4 | —Observed 2025-04-16 | — | ||
| 98.4 | —Observed 2025-04-16 | — | ||
| 1201.0 | vision_style_control overall 2026-10-19 (style control, default view)Observed 2026-10-26 | Configuration: o4-mini (2025-04-16) Harness: LMArena blind pairwise human votes, Bradley-Terry Evaluator: LMArena Confidence: confirmed Notes: LMArena vision style control leaderboard, overall category, published 2026-10-19 (HF lmarena-ai/leaderboard-dataset @9761a3ce, latest split; live page https://lmarena.ai/leaderboard/vision showed the same 2026-10-19 snapshot). Board entry 'o4-mini (2025-04-16)': rank 91, Arena Score 1201.0 (95% CI 1193.8-1208.1), 41316 votes. Versioned arena label mapped to catalog slug o4-mini (label date equals the model's release checkpoint). Retrieved 2026-10-26. | Source Source: LMArena (lmarena.ai), CC BY 4.0 | |
| 1294.0 | text creative_writing 2026-10-22Observed 2026-10-22 | Configuration: o4-mini (2025-04-16) Harness: LMArena blind pairwise human votes, Bradley-Terry Evaluator: LMArena Confidence: confirmed Notes: LMArena Text arena, Creative Writing category (no style control), board published 2026-10-22 (HF lmarena-ai/leaderboard-dataset @a467e6b9, text config, latest split). Board entry 'o4-mini (2025-04-16)' (category creative_writing in text/latest-00000-of-00001.parquet): rank 225 of 416, rating 1293.7 (95% CI 1285.5-1301.9), 5786 votes. LLM Reference model is lifecycle-deprecated; score kept as historical. Source: LMArena (CC BY 4.0). Retrieved 2026-10-27. | Source Source: LMArena (lmarena.ai), CC BY 4.0 |
Migration checks
No linked migration route is available for this model yet.
Compare o4-mini with other models
Comparison and alternatives
Browse all comparisons →Cheapest of 4 routes · Replicate API