â—† AI Article Pricer Compare AI article generation costs
Reference · updated weekly

LLM API Pricing: every model, every rate

Across the 55 models tracked here, input runs from $0.05 to $30.00 per million tokens and output from $0.40 to $180.00. Applied to one 1,500-word article that is $0.00080 on GPT-5 nano and $0.3627 on GPT-5.4 Pro.

A lookup table, not a calculator. Rates are transcribed by hand from each provider's own pricing page — no aggregators, no estimates — and every figure below links through to the calculator if you want it applied to your own workflow.

All 55 models re-verified weekly Last checked against provider documentation.
How to read this table

Four columns decide what you actually pay

All rates are USD per million tokens, the unit every provider publishes.

01

Input

What you send: the brief, instructions, any previous draft. Cheap relative to output, and it does not grow with article length.

02

Cached in

The discounted input rate on a prompt-cache hit. 4 tracked models publish no cache rate at all, so caching cannot reduce their input cost.

03

Output

What the model generates. This is the number that decides an article's cost, because a draft is almost entirely output.

04

Out/in

The output premium. A ratio of 5× means output costs five times input — the higher it is, the more a long article costs relative to a long brief.

Why the last column matters most

Per-million rates hide the thing you are buying

Two models with identical input rates can differ several-fold on a real article, because article generation is overwhelmingly an output workload. The 1,500 words column applies one consistent workflow — one draft, a 250-word brief, 20% prompt overhead — to every model, so the rows are directly comparable. Click any figure to open that model in the calculator.

Anthropic pricing calculator

9 models · tiers: Standard, Batch, Fast · cheapest article $0.0101 on Claude Haiku 4.5

ModelInputCached in OutputOut/inContext 1,500 words
Claude Haiku 4.5 $1.00 $0.100 $5.00 5.0× 200K $0.0101
Claude Sonnet 5.5 $2.00 $0.200 $10.00 5.0× 1,000K $0.0203
Claude Sonnet 5 $2.00 $0.200 $10.00 5.0× 1,000K $0.0203
Claude Sonnet 4.6 $3.00 $0.300 $15.00 5.0× 1,000K $0.0304
Claude Opus 5.5 $4.00 $0.200 $20.00 5.0× 1,000K $0.0406
Claude Opus 5 $5.00 $0.500 $25.00 5.0× 1,000K $0.0507
Claude Opus 4.8 $5.00 $0.500 $25.00 5.0× 1,000K $0.0507
Claude Fable 5.1 $10.00 $0.250 $50.00 5.0× 1,000K $0.1014
Claude Fable 5 $10.00 $1.000 $50.00 5.0× 1,000K $0.1014

OpenAI pricing calculator

26 models · tiers: Standard, Flex, Batch, Fast · cheapest article $0.00080 on GPT-5 nano

ModelInputCached in OutputOut/inContext 1,500 words
GPT-5 nano $0.05 $0.005 $0.40 8.0× 400K $0.00080
GPT-4.1 nano $0.10 $0.025 $0.40 4.0× 1,048K $0.00082
GPT-6 Luna Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session. $0.10 $0.010 $0.50 5.0× 1,050K $0.00101
GPT-4o mini $0.15 $0.075 $0.60 4.0× 128K $0.00123
GPT-5.6 Luna Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session. $0.20 $0.020 $1.20 6.0× 1,050K $0.00242
GPT-5.4 nano $0.20 $0.020 $1.25 6.3× 400K $0.00252
GPT-4.1 mini $0.40 $0.100 $1.60 4.0× 1,048K $0.00328
GPT-5 mini $0.25 $0.025 $2.00 8.0× 400K $0.00400
GPT-5.4 mini $0.75 $0.075 $4.50 6.0× 400K $0.00907
GPT-4.1 $2.00 $0.500 $8.00 4.0× 1,048K $0.0164
GPT-5.1 $1.25 $0.125 $10.00 8.0× 400K $0.0200
GPT-5 $1.25 $0.125 $10.00 8.0× 400K $0.0200
GPT-6 Sol Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session. $2.00 $0.200 $10.00 5.0× 1,050K $0.0203
GPT-4o $2.50 $1.250 $10.00 4.0× 128K $0.0205
GPT-5.6 Terra Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session. $2.00 $0.200 $12.00 6.0× 1,050K $0.0242
GPT-5.2 $1.75 $0.175 $14.00 8.0× 400K $0.0280
GPT-5.4 Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session. $2.50 $0.250 $15.00 6.0× 1,050K $0.0302
GPT-5.6 Sol Promotional rate, published as available at least through 2026-11-21; OpenAI has not announced the rate that follows it. Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session. $4.00 $0.400 $20.00 5.0× 1,050K $0.0406
GPT-5.5 Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session. $5.00 $0.500 $30.00 6.0× 1,050K $0.0604
GPT-6 Astra Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session. $10.00 $1.000 $50.00 5.0× 1,050K $0.1014
GPT-5.6 Cyber Security-focused tier, gated behind the Daybreak program. $12.50 $1.250 $75.00 6.0× 1,050K $0.1511
GPT-5.5 Cyber Security-focused tier, gated behind the Daybreak program. $12.50 $1.250 $75.00 6.0× 1,050K $0.1511
GPT-5 Pro $15.00 — $120.00 8.0× 400K $0.2398
GPT-5.2 Pro $21.00 — $168.00 8.0× 400K $0.3358
GPT-5.5 Pro $30.00 — $180.00 6.0× 400K $0.3627
GPT-5.4 Pro $30.00 — $180.00 6.0× 1,050K $0.3627

Google pricing calculator

10 models · tiers: Standard, Flex, Batch · cheapest article $0.00082 on Gemini 2.5 Flash-Lite

ModelInputCached in OutputOut/inContext 1,500 words
Gemini 2.5 Flash-Lite $0.10 $0.010 $0.40 4.0× 1,000K $0.00082
Gemini 3.1 Flash-Lite Text, image and video input rate; audio input is $0.50. $0.25 $0.025 $1.50 6.0× 1,000K $0.00302
Gemini 3.5 Flash-Lite $0.30 $0.030 $2.50 8.3× 1,000K $0.00499
Gemini 2.5 Flash $0.30 $0.030 $2.50 8.3× 1,000K $0.00499
Gemini 3.8 Flash Promotional rate through 2026-12-31; $1.50 / $7.50 from 2027-01-01. $0.75 $0.075 $3.75 5.0× 1,000K $0.00760
Gemini 3.7 Flash Promotional rate through 2026-12-31; $1.50 / $7.50 from 2027-01-01. $0.75 $0.075 $3.75 5.0× 1,000K $0.00760
Gemini 3.6 Flash Promotional rate through 2026-12-31; $1.50 / $7.50 from 2027-01-01. $0.75 $0.075 $3.75 5.0× 1,000K $0.00760
Gemini 3.5 Flash $1.50 $0.150 $9.00 6.0× 1,000K $0.0181
Gemini 2.5 Pro Rate shown is for prompts up to 200K tokens; $2.50 / $15.00 above that. $1.25 $0.125 $10.00 8.0× 1,000K $0.0200
Gemini 3.1 Pro Rate shown is for prompts up to 200K tokens; $4.00 / $18.00 above that. $2.00 $0.200 $12.00 6.0× 1,000K $0.0242

xAI pricing calculator

8 models · tiers: Standard, Batch · cheapest article $0.00429 on Grok Build 0.1

ModelInputCached in OutputOut/inContext 1,500 words
Grok Build 0.1 Rate shown is for prompts under 200K tokens; $2.00 / $4.00 at or above that. $1.00 $0.200 $2.00 2.0× 256K $0.00429
Grok 4.3 Rate shown is for prompts under 200K tokens; $2.50 / $5.00 at or above that. $1.25 $0.200 $2.50 2.0× 1,000K $0.00536
Grok 4.20 Reasoning Rate shown is for prompts under 200K tokens; $2.50 / $5.00 at or above that. $1.25 $0.200 $2.50 2.0× 1,000K $0.00536
Grok 4.20 Non-Reasoning Rate shown is for prompts under 200K tokens; $2.50 / $5.00 at or above that. $1.25 $0.200 $2.50 2.0× 1,000K $0.00536
Grok 4.20 Multi-Agent Rate shown is for prompts under 200K tokens; $2.50 / $5.00 at or above that. $1.25 $0.200 $2.50 2.0× 1,000K $0.00536
Grok 4.7 Rate shown is for prompts under 200K tokens; $4.00 / $12.00 at or above that. $2.00 $0.500 $6.00 3.0× 500K $0.0125
Grok 4.6 Rate shown is for prompts under 200K tokens; $4.00 / $12.00 at or above that. $2.00 $0.500 $6.00 3.0× 500K $0.0125
Grok 4.5 Rate shown is for prompts under 200K tokens; $4.00 / $12.00 at or above that. $2.00 $0.300 $6.00 3.0× 500K $0.0125

DeepSeek pricing calculator

2 models · tiers: Standard · cheapest article $0.00246 on DeepSeek V4.1 Flash

ModelInputCached in OutputOut/inContext 1,500 words
DeepSeek V4.1 Flash Peak rate. DeepSeek halves every rate outside peak hours (01:00–04:00 and 06:00–10:00 UTC, Monday–Friday; weekends are entirely off-peak) — off-peak this model is $0.15 input, $0.60 output, $0.003 cached. $0.30 $0.006 $1.20 4.0× 1,000K $0.00246
DeepSeek V4 Pro Peak rate. DeepSeek halves every rate outside peak hours (01:00–04:00 and 06:00–10:00 UTC, Monday–Friday; weekends are entirely off-peak) — off-peak this model is $0.66 input, $1.98 output, $0.022 cached. $1.32 $0.044 $3.96 3.0× 1,000K $0.00824
The fine print

26 models carry a rate qualification

Promotional and context-dependent rates are footnoted rather than averaged in.

  • GPT-6 Astra — Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session.
  • GPT-6 Sol — Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session.
  • GPT-6 Luna — Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session.
  • GPT-5.6 Sol — Promotional rate, published as available at least through 2026-11-21; OpenAI has not announced the rate that follows it. Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session.
  • GPT-5.5 — Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session.
  • GPT-5.4 — Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session.
  • GPT-5.6 Terra — Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session.
  • GPT-5.6 Luna — Prompts over 272K input tokens bill at 2x input / 1.5x output for the whole session.
  • GPT-5.6 Cyber — Security-focused tier, gated behind the Daybreak program.
  • GPT-5.5 Cyber — Security-focused tier, gated behind the Daybreak program.
  • Gemini 3.1 Pro — Rate shown is for prompts up to 200K tokens; $4.00 / $18.00 above that.
  • Gemini 2.5 Pro — Rate shown is for prompts up to 200K tokens; $2.50 / $15.00 above that.
  • Gemini 3.8 Flash — Promotional rate through 2026-12-31; $1.50 / $7.50 from 2027-01-01.
  • Gemini 3.7 Flash — Promotional rate through 2026-12-31; $1.50 / $7.50 from 2027-01-01.
  • Gemini 3.6 Flash — Promotional rate through 2026-12-31; $1.50 / $7.50 from 2027-01-01.
  • Gemini 3.1 Flash-Lite — Text, image and video input rate; audio input is $0.50.
  • Grok 4.7 — Rate shown is for prompts under 200K tokens; $4.00 / $12.00 at or above that.
  • Grok 4.6 — Rate shown is for prompts under 200K tokens; $4.00 / $12.00 at or above that.
  • Grok 4.5 — Rate shown is for prompts under 200K tokens; $4.00 / $12.00 at or above that.
  • Grok 4.3 — Rate shown is for prompts under 200K tokens; $2.50 / $5.00 at or above that.
  • Grok 4.20 Reasoning — Rate shown is for prompts under 200K tokens; $2.50 / $5.00 at or above that.
  • Grok 4.20 Non-Reasoning — Rate shown is for prompts under 200K tokens; $2.50 / $5.00 at or above that.
  • Grok 4.20 Multi-Agent — Rate shown is for prompts under 200K tokens; $2.50 / $5.00 at or above that.
  • Grok Build 0.1 — Rate shown is for prompts under 200K tokens; $2.00 / $4.00 at or above that.
  • DeepSeek V4.1 Flash — Peak rate. DeepSeek halves every rate outside peak hours (01:00–04:00 and 06:00–10:00 UTC, Monday–Friday; weekends are entirely off-peak) — off-peak this model is $0.15 input, $0.60 output, $0.003 cached.
  • DeepSeek V4 Pro — Peak rate. DeepSeek halves every rate outside peak hours (01:00–04:00 and 06:00–10:00 UTC, Monday–Friday; weekends are entirely off-peak) — off-peak this model is $0.66 input, $1.98 output, $0.022 cached.
No published cache rate

4 models cannot use prompt caching to cut input cost

GPT-5.5 Pro, GPT-5.4 Pro, GPT-5.2 Pro, GPT-5 Pro. Where a provider publishes no cache-read rate we leave the column empty rather than assuming a percentage of the input rate.

Changelog

What has changed

Every verification pass is recorded here, whether or not anything moved.

This log starts on 2026-08-18. Entries are appended at each weekly verification and whenever the data changes between passes. A pass that finds no change is still recorded — "nothing moved" is information too, and a log with only the exciting weeks in it is not evidence of anything.
DateChange
Added Claude Sonnet 5.5, released by Anthropic on 2026-09-28 at Sonnet 5’s rates — $2.00 input / $10.00 output, cache reads $0.20, Batch $1.00 / $5.00, no Fast mode, full 1M context at the standard rate (Anthropic pricing). This was not a full catalog re-verification. 55 models tracked.
Added ten models, transcribed from the Anthropic, OpenAI, Google and xAI pricing pages. Claude Fable 5.1 — $10.00 / $50.00, cache reads $0.25 (0.025× input), Batch at half price, no Fast. GPT-6 Luna — $0.10 / $0.50, cache reads $0.01, Batch and Flex at half price, Fast at 2×, 272K long-context threshold. GPT-5.5 Cyber — $12.50 / $75.00, cache reads $1.25, Standard only, Daybreak-gated. GPT-5.2 Pro — $21.00 / $168.00, Batch at half price. GPT-4.1 nano — $0.10 / $0.40, cache reads $0.025, Batch at half price with no cache discount, Fast at 2×. Gemini 3.8 Flash — promotional $0.75 / $3.75, cache reads $0.075, through 2026-12-31, then $1.50 / $7.50 / $0.15 from 2027-01-01. Gemini 3.1 Flash-Lite — $0.25 / $1.50, cache reads $0.025. Both Gemini models offer Batch and Flex at half price. Grok 4.20 Reasoning, Non-Reasoning and Multi-Agent — $1.25 / $2.50, cache reads $0.20, doubling at 200K prompt tokens, Batch 20% off. This was not a full catalog re-verification. 54 models tracked.
Verification pass. Full re-verification of all 44 tracked models against the five provider pricing pages, read from the raw published tables. No standard rate moved. One service-tier gap corrected: Google now publishes Flex at half the Standard rate on every tracked Gemini model, so Flex is now offered for Gemini here; Google’s 1.8× Priority tier is not modeled. Gemini Batch cache reads were also corrected — Gemini 3.1 Pro, 2.5 Pro, 2.5 Flash and 2.5 Flash-Lite keep the Standard cache-read rate on Batch and Flex, and 3.5 Flash-Lite charges $0.02 — where this calculator had been halving them. 44 models tracked.
Added Grok 4.7 — $2.00 input / $6.00 output, cache reads $0.50, doubling to $4.00 / $12.00 at or above 200K prompt tokens; no Batch tier listed (xAI pricing). DeepSeek has retired V4 Flash: the deepseek-v4-flash name is still accepted but served by DeepSeek-V4.1-Flash and billed at its price (DeepSeek pricing). V4 Flash is replaced here by V4.1 Flash at $0.30 input / $1.20 output, cache hits $0.006 at peak, with every rate halved off-peak; old links to V4 Flash resolve to V4.1 Flash, the same way the API does. This was not a full catalog re-verification. 44 models tracked.
Added Claude Opus 5.5 — $4.00 input / $20.00 output, cache reads $0.20 (0.05× input rather than the usual 0.1×), Batch $2.00 / $10.00, Fast $8.00 / $40.00 — and GPT-6 Sol — $2.00 / $10.00, cache reads $0.20, Batch and Flex at half price, Fast at 2×, with the same 272K long-context threshold as the rest of the 1,050K-window GPT line. Both transcribed from the Anthropic and OpenAI pricing pages. This was not a full catalog re-verification. 43 models tracked.
Targeted service-tier corrections: reconciled model-specific OpenAI Fast, Flex and Batch availability and component rates against its pricing tables; Grok 4.3 Batch is 20% off, while the other tracked Grok model pages mark Batch unsupported; and Claude Opus 5 and Opus 4.8 support Fast at 2× Standard. Corrected DeepSeek weekday/weekend schedule wording and added explicit off-peak budgeting. This was not a full base-rate catalog re-verification.
Verification pass. Full re-verification of all 40 tracked models against the five provider pricing pages: nothing moved. Added GPT-6 Astra, released by OpenAI on 2026-09-03 — $10.00 input / $50.00 output, cache reads $1.00, with the same 272K long-context threshold as the rest of the 1,050K-window GPT line (what an article costs on it). One transcription refinement: DeepSeek’s pricing page specifies that its peak-hour windows apply Monday–Friday, so weekends bill entirely at the half-price off-peak rate; both DeepSeek footnotes now say so. 41 models tracked.
Verification pass. Full re-verification of all 40 tracked models against the five provider pricing pages. Two moved. Anthropic cancelled the Claude Sonnet 5 increase recorded on 2026-08-20: the $2.00 / $10.00 introductory rate is now the standard rate and the 2026-09-01 rise to $3.00 / $15.00 will not happen (what changed). GPT-5.6 Sol fell from $5.00 / $30.00 to $4.00 / $20.00, cache reads $0.50 to $0.40, published as promotional pricing available at least through 2026-11-21 with no successor rate named. Everything else re-verified unchanged.
Added DeepSeek as a fifth provider: V4 Flash and V4 Pro, transcribed from DeepSeek’s published pricing, including the off-peak windows in which every rate is halved. 40 models tracked.
Recorded Anthropic’s announced end of Claude Sonnet 5’s introductory rate — $2.00 / $10.00 per million tokens becomes $3.00 / $15.00 on 2026-09-01 (full breakdown) — and the scheduled end of the promotional Gemini 3.6 Flash and 3.7 Flash rates on 2027-01-01. Both now roll over by date automatically.
Verification pass. Baseline: every tracked rate transcribed and verified against the provider pricing pages of Anthropic, OpenAI, Google and xAI. 38 models.
Rates are not a bill

These are list prices. Your invoice is a workflow.

Drafts, revision context, prompt overhead, reasoning tokens and processing tier all move the total. The calculator applies your own assumptions to every model on this page. They are also all rental rates — for the other side of that trade, where the cost is hardware rather than tokens, RunMyLLM's catalogue of open-weight models lists what actually fits on a given card and how fast it runs there.

Open the calculator →

Rates transcribed from provider documentation and verified . Licensed CC BY 4.0 — reuse freely with a link back. The same data is available as JSON at https://aiarticlepricer.com/api/models.