ARCHIVE PRICEDEPRECATED MODEL16KTEXT MODELNO CACHE SKU
GPT-3.5 Turbo API Pricing
GPT-3.5 Turbo is deprecated; this archive keeps the final $0.50/$1.50 workhorse price. $0.5/M input, $1.5/M output. It was the default low-cost OpenAI model for 2023 and remains useful for old invoice comparisons.
Archived input - per 1M tokens
$0.50/M
Source OpenAI deprecated
Archived output - per 1M tokens
$1.50/M
Use for invoice checks deprecated
Cached input
$0.50/M
Cache no separate SKU not listed
Effective - agentic blend
$0.58/M
92/8 split - 82% cache
§ 01 / TERMINAL
Run the numbers.
Archive calculator pre-loaded with GPT-3.5 Turbo rates. Tweak spend, output mix, or cache hit rate to compare legacy bills with current replacements.
$ /mo
Workload split
Prompt cache hit rate
Tokens you can process
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Words equivalent (English)
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Effective rate
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§ 02 / SCENARIOS
Real-world presets.
CODING AGENT ARCHIVE
Repo-wide bug fix
$0.051/task
LONG DOC ANALYSIS
Reading 100-page contracts
$0.099/doc
RAG SUPPORT
Support agent ticket triage
$0.004/ticket
ASSISTANT TURN
Research planning turn
$0.009/turn
§ 03 / TAPE
Price history.
Input · $0.50/M
Output · $1.5/M
Cached · $0.50/M
MAR 01 Original 2023 chat model launched before the final $0.50/$1.50 snapshotMAY 18 Deprecated; shutdown listed for October 23, 2026 with GPT-5.4 mini as replacement
§ 04 / TOKENIZER
Paste text. See tokens. See cost.
Estimate · tiktoken-cl100k_base · ≈4 chars/token Auto-counts as you type
This is a chars-per-token approximation, not a real tokenizer. Actual tokens vary by language, code density, and tool-call overhead — counts are typically ±10–20% off for English prose, more for code or non-Latin scripts. For exact billing, use the vendor's official tokenizer.
Characters —
Words —
Tokens (estimated) —
Cost as input · uncached —
Cost as output · uncached —
Cost as cached input —
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| GPT-3.5 Turbo | $0.50 cache $0.50 | $1.50 | $0.58 current page | 16K | Reasoning archive comparisons |
| GPT-5.5 | $5.00 cache $0.50 | $30.00 | $3.60 pricier | 1M | Current OpenAI flagship |
| GPT-5.4 | $2.50 cache $0.25 | $15.00 | $1.80 pricier | 1.05M | Current OpenAI daily driver |
| GPT-5.4 mini | $0.75 cache $0.07 | $4.50 | $0.54 cheaper | 400K | Current cheap OpenAI workloads |
| Claude Sonnet 4.6 | $3.00 cache $0.30 | $15.00 | $1.92 pricier | 1M | Current Claude agents |
| Gemini 2.5 Pro | $1.25 cache $0.13 | $10.00 | $1.10 pricier | 2M | Gemini long-context work |
| DeepSeek V4 Pro | $0.43 cache $0.00 | $0.87 | $0.14 cheaper | 1M | Low-cost reasoning and coding |
Frequently asked.
Short answers for teams checking GPT-3.5 Turbo pricing, status, and migration choices.
Q · 01 Is GPT-3.5 Turbo still available? +
GPT-3.5 Turbo is deprecated. OpenAI's deprecations page lists the shutdown and replacement path, so use this page for old workloads and migration checks.
Q · 02 How much did GPT-3.5 Turbo cost? +
GPT-3.5 Turbo is archived at $0.5/M input and $1.5/M output.
Q · 03 Is cached-input pricing included? +
No separate cached-input SKU is listed for this archive entry, so the calculator treats cached input as undiscounted.
Q · 04 What replaced it? +
The snapshot replacement is
gpt-5-4-mini; use the shelf to compare current options.Q · 05 Why keep this archive page? +
Archive pages preserve old price baselines, help explain invoice history, and capture migration search demand without treating old models as current recommendations.