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hexgrad: Kokoro 82M

Kokoro 82M is a lightweight, open-weight text-to-speech model from hexgrad. Priced at $0.62 per M characters. 4,096 token context window. Higher uptime with 2 providers. Includes independent benchmarks from Artificial Analysis.

Overview

Model specifications

Context
4,096 tokens
Maximum output
3,686 tokens
Architecture
text->speech
Tokenizer
Other
Knowledge cutoff
Not provided
Moderated
No
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Characters
$0.62
/M characters
API

Model configuration

Supported voices

af_alloyaf_aoedeaf_bellaaf_heartaf_jessicaaf_koreaf_nicoleaf_novaaf_riveraf_sarahaf_skyam_adamam_echoam_ericam_fenriram_liamam_michaelam_onyxam_puckam_santabf_alicebf_emmabf_isabellabf_lilybm_danielbm_fablebm_georgebm_lewisef_doraem_alexem_santaff_siwishf_alphahf_betahm_omegahm_psiif_saraim_nicolajf_alphajf_gongitsunejf_nezumijf_tebukurojm_kumopf_dorapm_alexpm_santazf_xiaobeizf_xiaonizf_xiaoxiaozf_xiaoyizm_yunjianzm_yunxizm_yunxiazm_yunyang
API

Quick start

Call this exact model ID through OpenRouter’s OpenAI-compatible API.

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"hexgrad/kokoro-82m","messages":[{"role":"user","content":"Hello!"}]}'
Capabilities

InputOutput

Input
text
Output
speech
API

Supported API parameters

frequency_penaltylogit_biasmax_tokensmin_ppresence_penaltyrepetition_penaltyresponse_formatseedstoptemperaturetop_ktop_p
Available providers

2 providers

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

DeepInfra

unknown
Context
4K
Maximum output
4K
Input
$0.620
Output
Free
Cache read
Not provided
Cache write
Not provided

Together

unknown
Context
4K
Maximum output
4K
Input
$4.00
Output
Free
Cache read
Not provided
Cache write
Not provided