$ impossibl changelog

last shipped

openai/gpt-6.1-terranew model

gpt-6.1 terra joins the ai api. openai's fast, efficient model for visual reasoning, computer use and natural writing, with a 1,050,000 token context window, text and image input, at $1 per million input tokens and $5 per million output.

moonshotai/kimi-k3.1-pro-highspeednew model

kimi k3.1 pro highspeed joins the ai api. moonshot's faster serving of k3.1 pro for coding agents and interactive use, with a 1m context window, text and image input, always-on reasoning with three effort levels, at $4 per million input tokens, $0.20 per million cached input tokens and $20 per million output.

moonshotai/kimi-k3.1-pronew model

kimi k3.1 pro joins the ai api. moonshot's flagship for long-horizon coding, 3d creation and financial research, with a 1m context window, text and image input, always-on reasoning with three effort levels, at $2 per million input tokens, $0.20 per million cached input tokens and $10 per million output.

minimaxai/minimax-m3.1-flashnew model

minimax m3.1 flash joins the ai api, with always-on reasoning and five effort levels.

deepseek/deepseek-v4.1-flash-1017new model

deepseek v4.1 flash 1017 joins the ai api. deepseek's october snapshot of its cost-efficient flash model, stronger at coding and agent work, with a 1m context window, text and image input, and low, high and max reasoning effort, at $0.30 per million input tokens and $1.20 per million output.

claude opus 5.5 fast modeimprovement

claude opus 5.5 now supports fast mode on all three generation endpoints. send service_tier: "fast" on chat completions or responses, or speed: "fast" on messages. fast uses anthropic direct and passes through $8 input / $40 output per million tokens, with cache pricing on top. responses report delivered speed; a confirmed standard-speed downgrade bills standard rates. see speed tiers for examples, cache prices and explicit client fallback.

typesafe-ai/jev-1.14.0new model

jev 1.14.0 joins the gateway.

meta/muse-spark-opennew model

muse spark open joins the ai api. meta's open-weight reasoning model for coding and long-running agent work, with a 1m context window, text and image input, and six reasoning effort levels, at $1.25 per million input tokens and $4.25 per million output.

meta/muse-wondernew model

muse wonder joins the ai api. meta's model for complex software engineering and long-running agent tasks, with a 1m context window, text and image input, and six reasoning effort levels, at $4 per million input tokens, $0.20 per million cached input tokens and $20 per million output.

qwen/qwen3.6-27bnew model

qwen3.6 27b joins the ai api. alibaba's dense open-weight model for agentic coding and repository-level work, with a 229,376 token context window, text and image input, and a thinking on/off switch, at $0.60 per million input tokens and $3.60 per million output.

google/gemini-4-argonnew model

gemini 4 argon joins the ai api. google's first gemini 4 model, built for careful reasoning on long coding, research and knowledge work, with a 1m context window, text plus image, audio and video input, at $2 per million input tokens and $10 per million output.

stepfun/step-3.7-flashnew model

Step 3.7 Flash joins the gateway.

stepfun/step-5-previewnew model

Step 5 Preview joins the gateway.

openai/gpt-6-luna-decisionsnew model

openai's gpt-6 luna decisions joins the gateway on a new endpoint, post /v1/decisions: send an input and typed yes/no, choice or score questions, get back typed answers with probabilities, at $0.10 per million input tokens and nothing for output.

anthropic/claude-haiku-5-5new model

claude haiku 5.5 joins the ai api. anthropic's fastest and cheapest claude, now with a 1m context window and text plus image input, from $0.10 per million input tokens and $0.50 per million output.

google/gemini-nano-banana-2.1new model

Google's Nano Banana 2.1 is live on /v1/images/generations, generating 1K, 2K and 4K square images from text at $1.50 per million input tokens and $30.00 per million image output tokens, with a 65,536 token context window.

gemini promotional pricing

gemini robotics er 2 preview and gemini 3.8 flash tts now bill at google's introductory rates through 2026.

mistral/mistral-large-4new model

Mistral Large 4 joins the gateway.

tencent/hy3

hunyuan 3 now costs $0.132 in and $0.528 out per million tokens.

tencent/hy4-previewnew model

hunyuan 4 preview joins the ai api.

xiaomi/mimo-v2.6-flashnew model

mimo v2.6 flash joins the ai api.

xiaomi/mimo-v2.6-pronew model

mimo v2.6 pro joins the ai api.

zai/glm-5.3-fastnew model

glm 5.3 fast joins the ai api. it is a faster serving tier over the same glm-5.3 weights.

openai/gpt-6.1-solnew model

gpt-6.1 sol joins the ai api.

anthropic/claude-sonnet-5-5new model

claude sonnet 5.5 joins the ai api. it is anthropic's successor to sonnet 5 for everyday coding and writing work.

tool history across models

gemini accepts tool calls carried over from other models without discarding existing thought signatures. mistral on foundry accepts foreign tool call ids and tools without descriptions. mimo v2.5's current route is marked text-only; image requests return a clear 400.

images in tool resultsnew feature

a tool result that carries an image now reaches the model instead of being flattened to text on every wire. /v1/chat/completions accepts image_url parts on tool messages, /v1/messages accepts image blocks inside tool_result, and /v1/responses accepts input_image items in a function_call_output. anthropic, gemini and the openai responses api receive the image natively inside the tool result; chat-completions backends get it as one user message right after the full tool-result group, so parallel tool calls stay intact. inline base64 images are supported; remote image urls in tool results return 400 instead of being fetched by the gateway. explicitly text-only models reject image input with a 400 rather than silently dropping it.

bedrock byok model detection

bedrock provider keys now detect every model your aws account can call, route those through your key first, and can be refreshed from the console.

elevenlabs/scribe-v2new model

scribe v2 and scribe v2 medical join /v1/audio/transcriptions, billed per second of audio at the scribe rate.

anthropic/claude-opus-5-5new model

claude opus 5.5 joins the ai api. it is anthropic's flagship opus model for long-running agentic coding, and it serves from our east us azure foundry deployment first, falling back to anthropic direct.

google/gemini-3.8-flash-ttsnew model

gemini 3.8 flash tts joins /v1/audio/speech with the same 30 steerable voices, billed per token at the flash tts rate.

openai/gpt-6-lunanew model

gpt-6 luna joins the ai api at $0.10 in / $0.50 out per million tokens, with a 1,050,000 token context window and text plus image input.

openai/gpt-6-solnew model

gpt-6 sol joins the ai api at $2.00 in / $10.00 out per million tokens, with a 1,050,000 token context window and text plus image input.

xai/grok-4.7new model

grok 4.7 joins the ai api. it is spacexai's flagship model for coding and agentic work, with text and image input.

layanew model

laya and laya-multilingual join the gateway free on /v1/systemone, with an 8k context window.

typesafe-ai/jev-1.13.0new model

jev is now pinnable: typesafe-ai/jev-1.13.0 always answers with that version, while typesafe-ai/jev and the new typesafe-ai/jev-latest follow typesafe's rolling alias.

zai/glm-5.3-flashxnew model

glm 5.3 flashx joins the ai api. it is z.ai's high-speed serving tier over the glm-5.3-flash weights.

typesafe-ai/jevnew model

typesafe ai's jev joins the gateway on a new endpoint, post /v1/systemone: send a state and typed yes/no, choice or score questions, get back typed answers with probabilities and confidence. mirrors typesafe's native api, so their sdk works by pointing typesafe_base_url at api.impossibl.com.

more modelsnew model

qwen3.7 and qwen3.8 flash, inkling small, nemotron 3 ultra, kimi k2.7 code, longcat 2, mimo v2.5 pro, gemini image and embedding, qwen embedding and reranking, whisper v3 and grok transcription models join the gateway.

deepseek/deepseek-v4.1-flashnew model

deepseek v4.1 flash joins the gateway.

openai/gpt-image-2.5-flarenew model

openai/gpt-image-2.5-flare is live on /v1/images/generations at $5.00 input and $30.00 output per 1M tokens.

openai/gpt-image-2.5-sunburstnew model

openai/gpt-image-2.5-sunburst is live on /v1/images/generations at $5.00 input and $30.00 output per 1M tokens.

tencent/hy3pricing

hunyuan 3 drops to $0.132 / $0.528 per million tokens, down from $0.20 / $0.80.

tencent/hy4-previewnew model

hunyuan 4 preview joins the gateway.

openai/gpt-6-astranew model

gpt-6 astra joins the gateway with a 1,050,000 token context window and text plus image input.

meta/muse-spark-1.3new model

muse spark 1.3 and muse spark 1.3 contributor join the ai api.

workspacesnew feature

workspaces join the console: invite your team, give each member a role — owner, admin, developer, or viewer — and switch between the workspaces you belong to from the top of the console. keys, balance, and usage belong to the workspace.

google/gemini-3.8-flashnew model

gemini 3.8 flash joins the ai api with a 1m-token context window. it is promo-priced at $0.75 / $3.75 per million tokens through 2026-12-31.

anthropic/claude-fable-5-1new model

claude fable 5.1 joins the ai api with a 1m-token context window and adaptive thinking. cache reads bill at $0.25 per million tokens, a quarter of fable 5's rate.

zai/glm-5.3-flashnew model

glm 5.3 flash joins the ai api.

qwen/qwen3.8-27bnew model

qwen3.8 27b joins the ai api.

zai/glm-5.3new model

glm 5.3 joins the ai api.

deepseek/deepseek-v4-pro-0813new model

deepseek v4 pro 0813 joins the ai api.

google/gemini-3.7-flashnew model

gemini 3.7 flash joins the gateway.

xai/grok-4.6new model

grok 4.6 joins the gateway.

qwen/qwen3.8-2.4t-a95bnew model

qwen3.8 2.4t a95b joins the ai api.

meta/muse-glimmer-30bnew model

muse glimmer 30b joins the ai api.

nvidia/nemotron-3.5-lightningnew model

nemotron 3.5 lightning joins the ai api.

log exports

take your request log with you. filter the logs room, press export csv, and the whole filtered window walks itself into a spreadsheet — not just the rows on screen.

sub-cent costs

a cheap request no longer reads as free. costs under a cent keep their digits down to the credit, so a log of small calls stops printing as a column of $0.00.

qwen/qwen3.8-maxnew model

qwen3.8 max joins the ai api.

deepseek/deepseek-v4-flash-0731new model

deepseek v4 flash 0731 joins the ai api.

google/gemini-3.1-flash-tts-previewnew model

gemini 3.1 flash tts brings 30 steerable voices to /v1/audio/speech, billed per token like every other gemini model.

google/gemini-robotics-er-2-previewnew model

gemini robotics-er 2 preview is now available.

xai/grok-voice-tts-1.0new model

grok voice tts brings five expressive voices and mp3, wav or pcm output to the new /v1/audio/speech endpoint.

audio and video input

send audio and video to gemini models on chat completions, the responses api, and the gemini-native endpoint, with audio billed at the provider's audio rate.

openai/gpt-transcribenew model

gpt-transcribe brings high-accuracy speech-to-text for completed files and streamed transcripts to /v1/audio/transcriptions.

embeddingsnew model

the ai api now turns text into vectors on /v1/embeddings, starting with openai/text-embedding-3-small and openai/text-embedding-3-large.

image generationnew model

the ai api now generates images, starting with openai/gpt-image-2 on /v1/images/generations.

anthropic/claude-opus-5new model

claude opus 5 joins the ai api with a 1m-token context window and native anthropic fallback.

tencent/hy3new model

hunyuan 3 joins the ai api through atlascloud.

qwen/qwen3.7-plusnew model

qwen 3.7 plus joins the ai api through fireworks.

atlascloudnew provider

atlascloud joins the gateway, serving mimo 2.5 and minimax m3.

google/gemini-3.5-flash-litenew model

gemini 3.5 flash-lite is now available.

google/gemini-3.6-flashnew model

gemini 3.6 flash is now available.

logs

every request is now logged. browse them in the dashboard, or have agents pull their own from /v1/requests.

xiaomi/mimo-v2.5new model

mimo 2.5 joins the ai api through atlascloud.

minimaxai/minimax-m3new model

minimax m3 joins the ai api through atlascloud.

realtime dashboard

usage and balance update live in the dashboard as requests come in.

xai/grok-4.5new model

grok 4.5 joins the gateway.

qwennew provider

alibaba's qwen models join the gateway.

qwen/qwen3.8-max-previewnew model

qwen's 3.8 max preview joins the gateway.

faster failovers

failed routes no longer slow down every request. in our benchmarks, failover times dropped from 6 seconds to under 1 millisecond.

auto top-up

recharge when your balance runs low.

moonshotai/kimi-k3new provider

moonshot joins the gateway.

/onboarding

a better start.

thinkingmachines/inklingnew model

two context tiers: 64k and 256k.

cerebras, groq, fireworksnew provider

three fast-inference providers join the gateway.

google gen ai sdk

one-liner migration now supported

openai/gpt-5.6-lunanew model

luna joins the gateway.

openai/gpt-5.6-solnew model

sol joins the gateway.

openai/gpt-5.6-terranew model

terra joins the gateway.

web_search on /v1/responses

xai's native web_search and x_search tools.

deepseek v4 + v3.2new model

v4 and v3.2 join the gateway.

byok

bring your own provider keys now supported

anthropic/claude-fable-5new model

fable 5 redeployed.

accounts + provider pricing

humans can claim agent-created accounts and merge balances. usage stays at provider price.

anthropic/claude-sonnet-5new model

sonnet 5 launches.

z.ainew provider

glm models join the gateway.

human dashboard

api keys, credit top-ups and the model catalog.

/v1/messages, images & tools

anthropic messages support, with image input and tool calling on every surface.

hello world

impossibl init