AI Model API Prices
Compare language model API prices in USD per million input and output tokens.
19 latest models · 5 providers · Reviews Oct 24 – 25, 2026.
Lowest prices by tier and scheduled price changes
Lowest · Frontier
$3.00/ 1M
Grok 4.7 · $2.00 in, $6.00 out
Lowest · Workhorse
$1.25/ 1M
Grok Build 0.1 · $1.00 in, $2.00 out
Lowest · Budget
$0.20/ 1M
GPT-6 Luna and Claude Haiku 5.5 · $0.10 in, $0.50 out
Scheduled price changes (3)
- · Gemini 4 Argon rises to $4.00/$20.00 from $2.00/$10.00
- · Gemini 3.8 Flash rises to $1.50/$7.50 from $0.75/$3.75
- · GPT-5.4 nano shuts down; replacement GPT-6 Luna
Latest versions at standard list prices, blended 3:1 input/output. Tiers are editorial price groups, not quality rankings.
Monthly estimate
Advanced: caching, batch and prompt length
Prompts are checked against recorded context windows. Missing limits stay unknown. Monthly output volume does not specify output per request; output limits and remaining context must be checked separately.
Only recorded discounts apply. Cache share applies within standard and batch input separately; a combined batch cache-hit rate is used only when explicitly recorded. Otherwise batch cache hits pay the batch input rate, or standard input if batch is unrecorded. Temporary offers, off-peak and modality terms remain beside each model; estimates do not schedule traffic or predict future rates.
All tracked models
USD / 1M tokens · standard list. Mix: 3:1 input/output.
19 of 39 models
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Table options
| Model | Provider | Input $/1M | Output $/1M | Mix $/1M3:1 input/output | Cached $/1M | Batch $/1Minput / output | Contextmax output | Est. cost /mo | Terms | Reviewed |
|---|---|---|---|---|---|---|---|---|---|---|
| GPT-6 Luna | OpenAI | $0.10 | $0.50 | $0.20 | $0.01 | $0.05 / $0.25 | 922K128K out | $8.00/mo |
Details for GPT-6 LunaBudget tier · standard list price. Prompt fits the recorded 922K-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Haiku 5.5 | Anthropic | $0.10 | $0.50 | $0.20 | $0.01 | $0.05 / $0.25 | 1M128K out | $8.00/mo |
Details for Claude Haiku 5.5Budget tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-5.6 Luna | OpenAI | $0.20 | $1.20 | $0.45 | $0.02 | $0.10 / $0.60 | 922K128K out | $18.00/mo | Older version
Details for GPT-5.6 LunaBudget tier · standard list price. Prompt fits the recorded 922K-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-5.4 nano | OpenAI | $0.20 | $1.25 | $0.46 | $0.02 | $0.10 / $0.63 | 272K128K out | $18.50/mo | Deprecated
Details for GPT-5.4 nanoBudget tier · standard list price. Prompt fits the recorded 272K-token context window; output per request is not checked. Official pricing page ↗ | |
| DeepSeek V4.1 Flash | DeepSeek | $0.30 | $1.20 | $0.52 | $0.01 | —No batch price recorded | 1M384K out | $21.00/mo |
Details for DeepSeek V4.1 FlashBudget tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Gemini 3.1 Flash-Lite | $0.25 | $1.50 | $0.56 | $0.03 | $0.13 / $0.75 | 1M64K out | $22.50/mo | Deprecated
Details for Gemini 3.1 Flash-LiteBudget tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | ||
| Gemini 3.5 Flash-Lite | $0.30 | $2.50 | $0.85 | $0.03 | $0.15 / $1.25 | 1M64K out | $34.00/mo | Details for Gemini 3.5 Flash-LiteBudget tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | ||
| Grok Build 0.1 | xAI | $1.00 | $2.00 | $1.25 | $0.20 | —No batch price recorded | 256K | $50.00/mo |
Details for Grok Build 0.1Workhorse tier · standard list price. Prompt fits the recorded 256K-token context window; output per request is not checked. Official pricing page ↗ | |
| Gemini 3.8 Flash | $0.75 | $3.75 | $1.50 | $0.08 | $0.38 / $1.88 | 1M64K out | $60.00/mo | Price change
Details for Gemini 3.8 FlashWorkhorse tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | ||
| Gemini 3.6 Flash | $0.75 | $3.75 | $1.50 | $0.08 | $0.38 / $1.88 | 1M64K out | $60.00/mo | Price changeOlder version
Details for Gemini 3.6 FlashWorkhorse tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | ||
| Grok 4.3 | xAI | $1.25 | $2.50 | $1.56 | $0.20 | $1.00 / $2.00 | 1M | $62.50/mo | Older version
Details for Grok 4.3Workhorse tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-5.4 mini | OpenAI | $0.75 | $4.50 | $1.69 | $0.08 | $0.38 / $2.25 | 272K128K out | $67.50/mo | Details for GPT-5.4 miniBudget tier · standard list price. Prompt fits the recorded 272K-token context window; output per request is not checked. Official pricing page ↗ | |
| DeepSeek V4 Pro 0813 | DeepSeek | $1.32 | $3.96 | $1.98 | $0.04 | —No batch price recorded | 1M384K out | $79.20/mo |
Details for DeepSeek V4 Pro 0813Budget tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Haiku 4.5 | Anthropic | $1.00 | $5.00 | $2.00 | $0.10 | $0.50 / $2.50 | 200K64K out | $80.00/mo | Older version
Details for Claude Haiku 4.5Budget tier · standard list price. Prompt fits the recorded 200K-token context window; output per request is not checked. Official pricing page ↗ | |
| Grok 4.7 | xAI | $2.00 | $6.00 | $3.00 | $0.50 | $1.60 / $4.80 | 500K | $120.00/mo |
Details for Grok 4.7Frontier tier · standard list price. Prompt fits the recorded 500K-token context window; output per request is not checked. Official pricing page ↗ | |
| Grok 4.6 | xAI | $2.00 | $6.00 | $3.00 | $0.50 | $1.60 / $4.80 | 500K | $120.00/mo | Older version
Details for Grok 4.6Frontier tier · standard list price. Prompt fits the recorded 500K-token context window; output per request is not checked. Official pricing page ↗ | |
| Grok 4.5 | xAI | $2.00 | $6.00 | $3.00 | $0.30 | $1.60 / $4.80 | 500K | $120.00/mo | Older version
Details for Grok 4.5Frontier tier · standard list price. Prompt fits the recorded 500K-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-6.1 Sol | OpenAI | $2.00 | $10.00 | $4.00 | $0.10 | $1.00 / $5.00 | 922K128K out | $160.00/mo |
Details for GPT-6.1 SolWorkhorse tier · standard list price. Prompt fits the recorded 922K-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-6 Sol | OpenAI | $2.00 | $10.00 | $4.00 | $0.20 | $1.00 / $5.00 | 922K128K out | $160.00/mo | Older version
Details for GPT-6 SolWorkhorse tier · standard list price. Prompt fits the recorded 922K-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Sonnet 5.5 | Anthropic | $2.00 | $10.00 | $4.00 | $0.10 | $1.00 / $5.00 | 1M128K out | $160.00/mo | Details for Claude Sonnet 5.5Workhorse tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Sonnet 5 | Anthropic | $2.00 | $10.00 | $4.00 | $0.20 | $1.00 / $5.00 | 1M128K out | $160.00/mo | Older version
Details for Claude Sonnet 5Workhorse tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Gemini 4 Argon | $2.00 | $10.00 | $4.00 | $0.10 | $1.00 / $5.00 | 1M64K out | $160.00/mo | Price change
Details for Gemini 4 ArgonFrontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | ||
| GPT-5.6 Terra | OpenAI | $2.00 | $12.00 | $4.50 | $0.20 | $1.00 / $6.00 | 922K128K out | $180.00/mo |
Details for GPT-5.6 TerraWorkhorse tier · standard list price. Prompt fits the recorded 922K-token context window; output per request is not checked. Official pricing page ↗ | |
| Gemini 3.1 Pro Preview | $2.00 | $12.00 | $4.50 | $0.20 | $1.00 / $6.00 | 1M64K out | $180.00/mo |
Details for Gemini 3.1 Pro PreviewFrontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | ||
| GPT-5.4 | OpenAI | $2.50 | $15.00 | $5.63 | $0.25 | $1.25 / $7.50 | 1.05M128K out | $225.00/mo | Older version
Details for GPT-5.4Workhorse tier · standard list price. Prompt fits the recorded 1.05M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Sonnet 4.6 | Anthropic | $3.00 | $15.00 | $6.00 | $0.30 | $1.50 / $7.50 | 1M128K out | $240.00/mo | Older version
Details for Claude Sonnet 4.6Workhorse tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-5.6 Sol | OpenAI | $4.00 | $20.00 | $8.00 | $0.40 | $2.00 / $10.00 | 922K128K out | $320.00/mo | Promotional priceOlder version
Details for GPT-5.6 SolFrontier tier · standard list price. Prompt fits the recorded 922K-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Opus 5.5 | Anthropic | $4.00 | $20.00 | $8.00 | $0.20 | $2.00 / $10.00 | 1M128K out | $320.00/mo | Details for Claude Opus 5.5Frontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Opus 4.8 | Anthropic | $5.00 | $25.00 | $10.00 | $0.50 | $2.50 / $12.50 | 1M128K out | $400.00/mo | Older version
Details for Claude Opus 4.8Frontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Opus 5 | Anthropic | $5.00 | $25.00 | $10.00 | $0.50 | $2.50 / $12.50 | 1M128K out | $400.00/mo | Older version
Details for Claude Opus 5Frontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Opus 4.7 | Anthropic | $5.00 | $25.00 | $10.00 | $0.50 | $2.50 / $12.50 | 1M128K out | $400.00/mo | Older version
Details for Claude Opus 4.7Frontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Opus 4.6 | Anthropic | $5.00 | $25.00 | $10.00 | $0.50 | $2.50 / $12.50 | 1M128K out | $400.00/mo | Older version
Details for Claude Opus 4.6Frontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Opus 4.5 | Anthropic | $5.00 | $25.00 | $10.00 | $0.50 | $2.50 / $12.50 | 200K64K out | $400.00/mo | Older version
Details for Claude Opus 4.5Frontier tier · standard list price. Prompt fits the recorded 200K-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-5.5 | OpenAI | $5.00 | $30.00 | $11.25 | $0.50 | $2.50 / $15.00 | 1.05M128K out | $450.00/mo |
Details for GPT-5.5Frontier tier · standard list price. Prompt fits the recorded 1.05M-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-6 Astra | OpenAI | $10.00 | $50.00 | $20.00 | $1.00 | $5.00 / $25.00 | 922K128K out | $800.00/mo |
Details for GPT-6 AstraFrontier tier · standard list price. Prompt fits the recorded 922K-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Fable 5.1 | Anthropic | $10.00 | $50.00 | $20.00 | $0.25 | $5.00 / $25.00 | 1M128K out | $800.00/mo | Details for Claude Fable 5.1Frontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| Claude Fable 5 | Anthropic | $10.00 | $50.00 | $20.00 | $1.00 | $5.00 / $25.00 | 1M128K out | $800.00/mo | Older version
Details for Claude Fable 5Frontier tier · standard list price. Prompt fits the recorded 1M-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-5.5 Pro | OpenAI | $30.00 | $180.00 | $67.50 | —No cached-input price recorded | $15.00 / $90.00 | 1.05M128K out | $2,700/mo |
Details for GPT-5.5 ProFrontier tier · standard list price. Prompt fits the recorded 1.05M-token context window; output per request is not checked. Official pricing page ↗ | |
| GPT-5.4 Pro | OpenAI | $30.00 | $180.00 | $67.50 | —No cached-input price recorded | $15.00 / $90.00 | 1.05M128K out | $2,700/mo | Older version
Details for GPT-5.4 ProFrontier tier · standard list price. Prompt fits the recorded 1.05M-token context window; output per request is not checked. Official pricing page ↗ |
20 older versions are hidden.
Price basis and review history
Prices are USD per million tokens from official pricing pages. Mix = (input volume × input price + output volume × output price) ÷ total volume. The default 3:1 mix matches the archived blended price. Zero total volume has no mix price. Context tiers, temporary offers, and billing exceptions stay in each model’s pricing details. Open a model for its archived observations and source evidence.
Mix uses base list prices only; monthly estimates add the recorded cache, batch and prompt-tier rates, not temporary or off-peak prices. Frontier, Workhorse and Budget are editorial price/use groupings, not measured quality rankings. Context and max output are the provider’s documented limits; availability is not verified. Reviews range from 2026-10-24 to 2026-10-25; each row keeps its own date.
Reviewed snapshots, not live quotes. Latest API pricing review: ; each model retains its own review date. Historical charts and other datasets have their own dates. Dataset review history →
Select 2–4 models in the table to compare their prices and billing conditions.
Every latest model on one scale
Standard list prices blended 3:1 input/output, USD per million tokens, on a logarithmic scale. The table above follows your own workload.
- GPT-5.5 ProOpenAI$67.50
- GPT-6 AstraOpenAI$20.00
- Claude Fable 5.1Anthropic$20.00
- GPT-5.5OpenAI$11.25
- Claude Opus 5.5Anthropic$8.00
- GPT-5.6 TerraOpenAI$4.50
- Gemini 3.1 Pro PreviewGoogle$4.50
- GPT-6.1 SolOpenAI$4.00
- Claude Sonnet 5.5Anthropic$4.00
- Gemini 4 ArgonGoogle$4.00
- Grok 4.7xAI$3.00
- DeepSeek V4 Pro 0813DeepSeek$1.98
- GPT-5.4 miniOpenAI$1.69
- Gemini 3.8 FlashGoogle$1.50
- $1.25
- Gemini 3.5 Flash-LiteGoogle$0.85
- DeepSeek V4.1 FlashDeepSeek$0.52
- GPT-6 LunaOpenAI$0.20
- Claude Haiku 5.5Anthropic$0.20
Blended price = (3 × input + output) ÷ 4, per 1M tokens, standard list. Dot position uses the logarithmic scale above.
How far have API prices fallen?
In the archived survey through 2026-04, the lowest tracked model matching original-GPT-4 quality was DeepSeek V4 Flash at $0.18 per million tokens blended 3:1 — −99.5% versus GPT-4 at launch ($37.50 blended, Mar 2023). These are historical list prices, not a current lowest-price claim: batch endpoints run about 50% off and cached input about 90% off.
The price of GPT-4-class intelligence, 2023–2026 →Questions
What is the cheapest AI model API?
Among the 19 latest model versions reviewed 2026-10-24 to 2026-10-25, the lowest standard list price is GPT-6 Luna (OpenAI) and Claude Haiku 5.5 (Anthropic) at $0.20 per million tokens blended 3:1 input/output ($0.10 input, $0.50 output). The lowest in the frontier tier, Grok 4.7 at $3.00; in the workhorse tier, Grok Build 0.1 at $1.25. Tiers are editorial price groups, not quality rankings, and a cheaper model may need more tokens for the same task.
How much do cached input and batch requests save?
18 of the 19 latest models publish a cached-input price, a median 90% below standard input (from 75% to 98%). 16 publish batch prices, a median 50% below standard input. The table's monthly estimate applies a discount only where a model records one.
Which API models accept the longest prompts?
GPT-5.5 Pro and GPT-5.5 document the largest context window, 1,050,000 tokens; 12 of the 19 latest models with a documented window accept about a million tokens or more. Several providers charge a higher long-context price past a prompt threshold, shown in each model's terms.
Which API prices are scheduled to change?
Gemini 4 Argon (Google), Dec 1, 2026: rises to $4.00/$20.00 from $2.00/$10.00. Gemini 3.8 Flash (Google), Jan 1, 2027: rises to $1.50/$7.50 from $0.75/$3.75. GPT-5.4 nano (OpenAI), Apr 1, 2027: shuts down; replacement GPT-6 Luna. Dates are the providers' own; the next review records what took effect.