Phi-4-reasoning
azure The API that serves this model and sets the prices shown here. phi-4-reasoning The model identifier to send in API requests. LLM Generates text from a prompt, so it can be compared with other LLMs on price and capability.Provider: microsoft
Knowledge cutoff: October 2023
Nothing to act on today. The cost is the checking: someone has to remember to look again next month, and the month after. Coolhand watches this model for you and automatically updates your agents to the most compatible replacement the moment a retirement is announced — one less thing on your list, permanently.
Sticker prices & cost-per-token
List rates as published by microsoft, before any volume or enterprise discounts.
$0.125
$0.50
32,000 tokens
4,096
tokens per response (includes reasoning tokens)
Open weights (permissive license)
MIT
Get this data free
Want to stay updated on price changes on this model? Pull this data free (no API key required) here:
curl "https://coolhandlabs.com/api/v2/inference_apis?q%5Bmodel_eq%5D=phi-4-reasoning&q%5Bsource_api_eq%5D=azure"Pricing History
| Effective | Price |
|---|---|
| Aug 16, 2026 – present | Input cost: $0.125 / 1M, Output cost: $0.50 / 1M, Cached input cost: $0.00 / 1M, Cache creation cost: $0.00 / 1M, 5-minute cache write cost: $0.00 / 1M, 1-hour cache write cost: $0.00 / 1M, Reasoning output cost: $0.00 / 1M, Cache storage cost: $0.00 / 1M/hr |
History
No automated scan changes recorded yet.
| Date | Changed by | What changed |
|---|---|---|
| Aug 16, 2026 | Unknown | Initial record created |
Source
https://models.dev/api.json (models.dev provider 'azure', bulk import 2026-08-13)Comparable models
No comparable models identified yet.
Reliability
No reliability incidents recorded in the last 90 days.
Frequently asked questions
Phi-4-reasoning (microsoft) costs $0.125 per 1M input tokens and $0.50 per 1M output tokens, as last published by microsoft.
Phi-4-reasoning has a context window of 32,000 tokens (the maximum combined input and output it can handle in a single request).
Phi-4-reasoning can generate up to 4,096 tokens in a single response. Reasoning (thinking) tokens count toward this limit.
Phi-4-reasoning's training data runs through October 2023, so it may not know about later events. Coolhand records the cutoff at month precision, since providers often publish only the month.
Phi-4-reasoning accepts text as input and produces text as output, as recorded in the Coolhand catalog.
Yes — the weights of Phi-4-reasoning can be downloaded under the MIT license. Check the license terms for any limits on commercial use.
No, Phi-4-reasoning is currently active with no announced deprecation date.
Call GET https://coolhandlabs.com/api/v2/inference_apis?q[source_api_eq]=azure&q[model_eq]=phi-4-reasoning — free, no API key required, and scoped to just this model since source_api and model together are unique. See https://coolhandlabs.com/docs for the full REST API reference.
Coolhand also tracks Phi-4, Phi-4-mini, Phi-4-multimodal, Phi-4-reasoning-plus, Phi 4, and WizardLM-2 8x22B from microsoft. Some may already be deprecated, so check each model's status alongside its current pricing.
| Model | Input cost | Output cost | Context window | Max output tokens | Status |
|---|---|---|---|---|---|
| Phi-4 | $0.125/1M $0.0000001250 | $0.50/1M $0.0000005000 | 128,000 | 4,096 | Active |
| Phi-4-mini | $0.075/1M $0.0000000750 | $0.30/1M $0.0000003000 | 128,000 | 4,096 | Active |
| Phi-4-multimodal | $0.08/1M $0.0000000800 | $0.32/1M $0.0000003200 | 128,000 | 4,096 | Active |
| Phi-4-reasoning-plus | $0.125/1M $0.0000001250 | $0.50/1M $0.0000005000 | 32,000 | 4,096 | Active |
| Phi 4 via OpenRouter | $0.07/1M $0.0000000700 | $0.14/1M $0.0000001400 | 16,384 | 14,745 | Active |
| WizardLM-2 8x22B via OpenRouter | $0.62/1M $0.0000006200 | $0.62/1M $0.0000006200 | 65,535 | 8,000 | Active |
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