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Live prices · updated automatically

Best AI chat models in 2026: prices compared

Every chat and reasoning model available in HEEEXY AI Studio, compared by price per 1M tokens. Prices come straight from the live catalog and update automatically. 38 priced models are available right now.

Quick answers

Cheapest optionGpt 6 Luna0.6–30 credits / 1M tokens · about $0.0041–$0.204 per 1M tokens · lowest starting price in this list
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Best value among reviewed picksGpt 6.1 Sol6–600 credits / 1M tokens · about $0.041–$4.08 per 1M tokens · lowest price among HEEEXY's reviewed top picks
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Top of the catalog rankingGpt 6 Astra56–2800 credits / 1M tokens · about $0.381–$19.05 per 1M tokens · first in HEEEXY's own catalog ranking
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20 chat models compared by price per 1M tokens

#ModelProviderCreditsAbout (USD)Notable options
1Gpt 6 AstraOpenAI56–2800 credits / 1M tokensabout $0.381–$19.05 / 1M tokensChat
2Claude Opus 5.5Anthropic320–1600 credits / 1M tokensabout $2.18–$10.88 / 1M tokensChat
3Gpt 6.1 Sol (best value pick)OpenAI6–600 credits / 1M tokensabout $0.041–$4.08 / 1M tokensChat
4Gemini 3.8 FlashGoogle45–225 credits / 1M tokensabout $0.306–$1.53 / 1M tokensChat
5Gpt 6 LunaOpenAI0.6–30 credits / 1M tokensabout $0.0041–$0.204 / 1M tokensChat
6Gpt 6 SolOpenAI12–600 credits / 1M tokensabout $0.082–$4.08 / 1M tokensChat
7Claude Opus 5Anthropic400–2000 credits / 1M tokensabout $2.72–$13.61 / 1M tokensChat
8Gpt 5.6 LunaOther1.12–67.2 credits / 1M tokensabout $0.0076–$0.457 / 1M tokensChat
9Gpt 5.6 SolOther28–1680 credits / 1M tokensabout $0.190–$11.43 / 1M tokensChat
10Gpt 5.6 TerraOther11.2–672 credits / 1M tokensabout $0.076–$4.57 / 1M tokensChat
11Claude HaiKu 5.5Anthropic12–60 credits / 1M tokensabout $0.082–$0.408 / 1M tokensChat
12Claude Sonnet 5.5Anthropic160–800 credits / 1M tokensabout $1.09–$5.44 / 1M tokensChat
13GPT 5.2OpenAI87.5–700 credits / 1M tokensabout $0.595–$4.76 / 1M tokensChat
14Claude Fable 5Anthropic800–4000 credits / 1M tokensabout $5.44–$27.21 / 1M tokensChat
15Claude Sonnet 5Anthropic170–855 credits / 1M tokensabout $1.16–$5.82 / 1M tokensChat
16Claude Opus 4.8Anthropic400–2000 credits / 1M tokensabout $2.72–$13.61 / 1M tokensChat
17Claude Opus 4.7Anthropic285–1430 credits / 1M tokensabout $1.94–$9.73 / 1M tokensChat
18Claude Opus 4.6Anthropic285–1430 credits / 1M tokensabout $1.94–$9.73 / 1M tokensChat
19Claude Opus 4.5Anthropic285–1430 credits / 1M tokensabout $1.94–$9.73 / 1M tokensChat
20Grok 4.7Grok40–480 credits / 1M tokensabout $0.272–$3.27 / 1M tokensChat

Models are listed in HEEEXY's catalog ranking, not a quality benchmark. Only models billed per 1M tokens are compared here; a range means options such as length or resolution change the cost. See all AI model prices or the full chat directory.

Questions

What is the cheapest AI chat model?

Right now Gpt 6 Luna is the cheapest in this comparison at 0.6–30 credits / 1M tokens (about $0.0041–$0.204 per 1M tokens). Prices come from the live catalog and can change.

Do I need a subscription?

No. There is no subscription and no monthly fee. Add credits from $5 and use them on any model in AI Studio.

How are the prices calculated?

Credits are the real amounts charged by HEEEXY. The dollar figure is an estimate based on what a credit is worth when you add $10 of credits. A price range means options such as length or resolution change the cost.

What happens if a generation fails?

A failed run is not charged. You see the exact credits used after each successful run.