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Letta

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Free if: Letta Free plan, inside the Letta app, CLI or web app; counts toward the free tier's "standard model requests"

To start: $0 · account Free plan: limited agents and requests, "rotating free models"

Use it: CLI only

Free now0 of 2models
Ended2lanes
Free programs1on this channel
Last checkedOct 23
Events7
Tested by us1 of 2lanes measured

What's free here now 2 models tracked

Programs on this channel credits and allowances that are not tied to one model

Letta Free Plan Letta Auto Quota liveLimited Letta Auto usage on Free plan (weekly+monthly quota; number not published) a month account

Free periods this channel's models side by side

free so farpast announced endofficial end aheadinferred end aheadno end announcedended / not answering● event · ◆ end announced · tap one to see it

What happened newest first · times link to the source

Fri, Oct 2311 days ago
endedDeepSeek V4 Flash · Lettaended
DeepSeek V4 Flash on Letta is no longer free: at the 2026-10-23 recheck the model catalogue lists it under the credit-billed tier, and a live free-plan probe was refused with "minimum $1 in credits is required" (the same error as its sister lane on 2026-10-17); a letta/echo control on the same account passed, so the refusal is model-specific → end date Oct 23
Source: Letta pricing
Sat, Oct 1717 days ago
endedDeepSeek V4.1 Flash · Lettaended
Letta's free window for DeepSeek V4.1 Flash ended 2026-10-17: model requests now consume credits, and a free account with a $0.00 balance was refused with "minimum $1 in credits is required"; the pricing docs say model requests consume credits at a rate depending on model API pricing, and the per-model price page needs a login → end date Oct 17
Source: Letta pricing docs plus our own agent-run refusal (own check)
snapshot updatedDeepSeek V4.1 Flash · OpenCode Zenlive DeepSeek V4.1 Flash · ModelScopelisted DeepSeek V4.1 Flash · Lettaended
DeepSeek V4.1 Flash upgraded in place to 1017; the API name deepseek-flash and the price are unchanged. Which snapshot each third-party channel serves is not recorded.
Source: DeepSeek API change log
Tue, Oct 628 days ago
listedDeepSeek V4.1 Flash · Lettaended DeepSeek V4 Flash · Lettaended
Both carry a green "Free" badge in the Letta app's Hosted model list (other hosted models show "Quota" or "Out of credits"); V4.1 Flash ran an agent session on a free account. No official start or end date found
Source: own check
became availableQwen3.8 Flash · Qoderlive DeepSeek V4.1 Flash · Lettaended
Admitted to Dim's free worker pool after agent benchmarks: Qwen3.8-Flash via the Qoder CLI, and DeepSeek V4.1 Flash via the Letta Code CLI (about 3 parallel on the free plan)
Source: own check
Thu, Aug 13
became availableDeepSeek V4 Flash · Lettaended
Letta: "DeepSeek V4 Flash are now available on Letta Cloud. Use your Letta API credits to run either model." Paid credits then, not free
Source: Letta on LinkedIn
Fri, Jul 31
snapshot updatedDeepSeek V4 Flash · OpenCode Zennot answering DeepSeek V4 Flash · SenseNovalisted DeepSeek V4 Flash · Lettaended DeepSeek V4 Flash · ModelScopelisted
DeepSeek V4 Flash updated in place to 0731 (re-post-trained on the same architecture); the API name deepseek-v4-flash is unchanged. Which snapshot each third-party channel serves is not recorded.
Source: DeepSeek API change log

Lane details

DeepSeek V4.1 Flash ended✕ humans✕ agents

Tested by us
works · Oct 63 parallel0 credits usedfails silently over limit
ⓘheadless runs need a dedicated agent and --new · checked Oct 6
Model ID
deepseek/deepseek-v4.1-flash
Free condition
Letta Free plan, inside the Letta app, CLI or web app; counts toward the free tier's "standard model requests"
Limit (stated)
not published
ⓘrequest cap unpublished; 3 agents on Free
Started
not recorded; after Aug 13, when Letta still billed it to credits
End
ended 17 days ago Oct 17free window closed: since 2026-10-17 Letta bills this model to credits, and a free account at $0.00 is refused with "minimum $1 in credits is required"
Data policy
may train
Checked
Oct 17 · agent run

DeepSeek V4 Flash ended✕ humans✕ agents

Tested by us
not measured
Model ID
deepseek/deepseek-v4-flash-0731
Free condition
Letta Free plan, inside the Letta app, CLI or web app; counts toward the free tier's "standard model requests"
Limit (stated)
not published
ⓘrequest cap unpublished; 3 agents on Free
Started
not recorded; after Aug 13, when Letta still billed it to credits
End
ended 11 days ago Oct 23free window closed: at the 2026-10-23 recheck Letta bills this model to credits (catalogue tier per-inference), and a free account at $0.00 is refused with "minimum $1 in credits is required"
Data policy
may train
Checked
Oct 23 · catalogue